Aviation Themed Blanks

Sierra embedded blanks with Amelia Earhart's Lockheed Vega 5B cloth wing material.

All blanks will come with one COA per blank. 
COAs are 4" x 6" card stock with foil COA seal.

Aviator Amelia Earhart became the first female pilot to accomplish a solo, nonstop flight across the Atlantic Ocean. Flying the red Lockheed Vega 5B, Earhart traveled over 2,000 miles from Newfoundland to Ireland over the North Atlantic in just under 15 hours. For her solo transatlantic crossing on May 20, 1932, Earhart was awarded a Distinguished Flying Cross by the United States Congress.

Hardin Penworks, LLC, certifies that material supplied to the artisan of the accompanying hand-crafted item was sourced from the Red Lockheed Vega 5B aircraft. This material is unconditionally guaranteed to be 100% Authentic.

Pen turned by Tim Boddy

Pen turned by Steve Baker

These blanks are embedded with a small piece of the original material from the aircraft. The piece is approximately 1/8” square/round in size. The embedded components are positioned over a starburst silhouette of the aircraft’s outline.

NASA Space Shuttle Atlantis Embedded Pen Blanks

NASA Space Shuttle Atlantis space-flown double embedded material blanks for Jr Series, Sierra Clone, and Shuttle Kit (Wood Turningz), and custom order tube size blanks available as singles or sets. Explore more embedded blanks and sibling shuttle collections.

All blanks will come with one COA per blank.
COAs are 4" x 6" card stock with foil COA seal. See our full COA blanks selection.

Blank Tube Size Descriptions:

• Jr Series blanks are double tube set 12.5mm tubes and 10.5mm lower tubes

• Sierra Clone blanks are single 27/64" tubes — pair with compatible pen component sets

• Shuttle Kit blanks are for the Shuttle Kit from Wood Turningz single 10mm tube.

• Custom single Tube or Double Tube Sets available. (Two Week Delivery) Specify tube size needed in notes at check out.

Browse all pen blanks or what's new arrivals.

Space Shuttle Atlantis materials:

Hardin Collectibles, LLC, certifies that material supplied to the artisan of the accompanying hand-crafted item was sourced from the Space Shuttle Atlantis, NASA’s Orbiter Vehicle OV-104.

The embedded lower black material was sourced from a nose gear tire flown on the Atlantis during mission STS-27. This mission was the third flight of Atlantis launching on December 2, 1988 on a four-day mission where it carried a classified payload for the Department of Defense. The embedded upper foil was sourced from the Thermal Control System Blanket flown on the Atlantis during the STS-86 mission to the Mir space station for the seventh MIR docking mission.

During nearly 26 years of service from 1985 to 2011, the Atlantis flew 33 missions, carried 207 crew members, orbited our Earth 4,848 times, traveled 125,935,769 miles, and spent 306 days, 14 hours, 12 minutes, and 43 seconds in space travel. Discover more aviation relics and military relics.

Material Vision & Turning Notes:

Atlantis blanks combine the rugged texture of flown nose gear tire rubber with the reflective thermal blanket foil layers, creating dramatic contrast once polished. The materials accept standard woodturning techniques yet reward careful, light passes to preserve the embedded aerospace fibers. Turn these blanks into Jr Series, Sierra, or custom shuttle-style pens that become conversation pieces at any aviation event. Display finished work on pen display stands & COA holders.

Finish Recommendation:

For the ultimate mirror-like shine that highlights every detail of the space-flown materials, we recommend our Magic Juice Polishing Compound.

Space Shuttle Atlantis Service History

The Space Shuttle Atlantis stands as one of NASA’s most accomplished orbiters, logging an extraordinary record of scientific achievement, international cooperation, and defense support across 33 missions. Built by Rockwell International in Palmdale, California, Atlantis rolled out in 1985 as the fourth operational orbiter after Columbia, Challenger, and Discovery. Its name honors the two-masted steam-powered research vessel that operated for the Woods Hole Oceanographic Institution from 1930 to 1966. The orbiter’s design incorporated lessons from earlier flights, featuring reinforced thermal protection tiles and upgraded avionics that supported its long service life.

Atlantis launched on its maiden voyage, STS-51-J, on 3 October 1985, deploying classified Department of Defense payloads. Early missions emphasized satellite deployment and retrieval, including the Galileo probe to Jupiter in 1989 and the Magellan Venus radar mapper. The orbiter’s robust airframe and upgraded systems allowed it to support longer-duration flights and complex rendezvous operations. These early successes demonstrated the reliability of the reusable spacecraft concept and paved the way for more ambitious scientific and exploration goals.

During the 1990s Atlantis became synonymous with the Russian Mir space station. It flew seven docking missions between 1995 and 1997, delivering supplies, rotating crews, and conducting joint experiments. STS-71 marked the first U.S.-Russian shuttle docking, while STS-86 delivered the final Mir crew rotation before the station’s decommissioning. The thermal control system blankets that supplied the foil embedded in these pen blanks flew on STS-86, protecting critical avionics from extreme temperature swings in low-Earth orbit. Each docking required precise navigation and highlighted international collaboration in space.

Atlantis also flew several Hubble Space Telescope servicing missions and numerous Spacelab and Spacehab research flights. Its payload bay hosted the Wake Shield Facility, the Wake Vortex experiment, and multiple biotechnology and materials science investigations. The orbiter’s final flight, STS-135, delivered the Raffaello Multi-Purpose Logistics Module to the International Space Station in July 2011, closing the Space Shuttle program. Throughout its career the vehicle underwent multiple orbiter maintenance down periods that extended its operational capability far beyond original projections.

Over its career Atlantis traveled more than 125 million miles, completed 4,848 orbits, and spent 306 days in space. It carried 207 individual astronauts representing NASA, ESA, RSA, JAXA, and CSA. Post-retirement, Atlantis was prepared for public display at the Kennedy Space Center Visitor Complex, where it remains a centerpiece of the Atlantis exhibit, inspiring new generations of makers and engineers. The vehicle’s structural integrity after decades of launches and reentries continues to impress aerospace historians and enthusiasts alike.

Enthusiasts prize Atlantis material for its direct connection to human spaceflight milestones. The nose-gear tire rubber from STS-27 embodies the rugged engineering required for classified defense missions, while the foil layers from STS-86 represent the thermal protection systems that enabled safe return from orbit. When turned and polished, these relics produce pens that carry authentic aerospace provenance and spark conversations about exploration, craftsmanship, and the reusable spacecraft era. Additional military and naval relic options are available in our US Navy ship wood collection. The orbiter’s legacy also includes contributions to the assembly of the International Space Station through multiple logistics flights that delivered critical modules and supplies, underscoring its role in advancing long-term human presence in space. Engineers and historians continue to study Atlantis’s flight data to inform next-generation reusable vehicles, ensuring its influence extends well beyond its final landing. Atlantis completed its final landing on 21 July 2011 at Kennedy Space Center, marking the end of the shuttle program while preserving irreplaceable hardware for future study and public inspiration.

No finished pens are included. Pen components sold separately from our pen kits or your preferred vendors.

These blanks are embedded with a small piece of the original material from the aircraft. The piece is approximately 1/8” square/round in size. The embedded components are positioned over a starburst silhouette of the aircraft’s outline.

Sierra and Bolt embedded blanks with Vietnam War era Bell AH-1G Cobra Attack Helicopter.

All blanks will come with one COA per blank.
COAs are 4" x 6" card stock with foil COA seal.

The Bell AH-1G Cobra was the world’s first purpose-built attack helicopter and one of the most iconic aircraft of the Vietnam War. Developed by Bell Helicopter as an interim gunship solution, the AH-1G entered U.S. Army service in 1967 and was rapidly deployed to Southeast Asia. Its slender fuselage, tandem seating for pilot and gunner, and heavy armament made it a radical departure from the armed utility helicopters that had preceded it.

Powered by a single Lycoming T53 turboshaft engine, the AH-1G could carry a chin-mounted turret with a 7.62 mm minigun or 40 mm grenade launcher, plus rocket pods and additional guns on its stub wings. It was designed to escort troop-carrying Hueys, provide close air support for ground forces, and engage enemy positions with speed and precision. Cobras flew more than one million combat hours in Vietnam; roughly 300 were lost to enemy action or accidents during the conflict.

The AH-1G earned the nicknames “Snake” and “Cobra” for its sleek profile and aggressive role on the battlefield. It remained in frontline Army service through the end of the Vietnam War and formed the foundation for later Cobra variants that continued flying for decades. Material from these Vietnam-era airframes carries the legacy of the first dedicated attack helicopter and the crews who flew them under demanding combat conditions.

These blanks are embedded with a small piece of the original material from the aircraft. The piece is approximately 1/8” square/round in size. The embedded components are positioned over a starburst silhouette of the aircraft’s outline.

Sierra embedded blanks with Vietnam War Bell Huey UH-1F Iroquois metal material.

All blanks will come with one COA per blank.
COAs are 4" x 6" card stock with foil COA seal.

The Bell UH-1 Iroquois "Huey" is a utility military helicopter designed and produced by the American aerospace company Bell Helicopter. It is the first member of the prolific Huey family, as well as the first turbine-powered helicopter in service with the United States military.

Development of the Iroquois started in the early 1950s, a major impetus being a requirement issued by the United States Army for a new medical evacuation and utility helicopter. An initial production contract for 100 HU-1As was issued in March 1960. In response to criticisms over the rotorcraft's power, Bell quickly developed multiple models furnished with more powerful engine.

The Iroquois was first used in combat operations during the Vietnam War, the first examples being deployed in March 1962. It was used for various purposes, including conducting general support, air assault, cargo transport, aeromedical evacuation, search and rescue, electronic warfare, and ground attack missions. Armed Iroquois gunships carried a variety of weapons, including rockets, grenade launchers, and machine guns, and were often modified in the field to suit specific operations. The United States Air Force deployed its Iroquois to Vietnam, using them to conduct reconnaissance operations, psychological warfare, and other support roles.

The Iroquois was originally designated HU-1, hence the Huey nickname, which has remained in common use, despite the official redesignation to UH-1 in 1962.

Bell Helicopters was the winner of a 1963 United States Air Force competition for a support helicopter for use on its missile bases. The resulting UH-1F had the shorter cabin of the "Bravo" Huey, but with a longer tail boom, rotor and transmission. The iconic aircraft of the Vietnam War with the distinctive "wop-wop" of the Huey's rotor blades stirs the memories of the generation that came of age during the turbulent 1960s.

The UH-1F was introduced into the USAF inventory in February 1964. The USAF took delivery of 119 Huey with production ending in 1967. Many of the aircraft served in southeast Asia with the 20th Special Operations Squadron and some were converted to the armed UH-1P configuration.

These blanks are embedded with a small piece of the original material from the aircraft. The piece is approximately 1/8” square/round in size. The embedded components are positioned over a starburst silhouette of the aircraft’s outline.

The McDonnell Douglas F/A-18A Hornet, a twin-engine, carrier-capable multirole fighter, transformed naval aviation with its adaptability. Nicknamed the "Rhino," it first flew on November 18, 1978, and entered service in 1983. Powered by two General Electric F404-GE-402 engines, each generating 17,750 pounds of thrust, it reaches Mach 1.8 at 40,000 feet. Its fly-by-wire system, a production fighter first, ensures precision handling. Armed with a 20mm M61A1 cannon and capable of carrying 13,700 pounds of ordnance, including AIM-9 Sidewinders and AGM-65 Mavericks, the Hornet excelled in air-to-air and air-to-ground roles. In Operation Desert Storm, it downed enemy aircraft and struck ground targets in single missions. The F/A-18A served the U.S. Navy, Marine Corps, and the Blue Angels from 1986 to 2020, showcasing its agility at airshows worldwide.

These pen blanks are crafted from the authentic fuselage of F/A-18A Hornet, Bureau Number 161973, preserving its storied legacy. Perfect for aviation enthusiasts, veterans, or collectors, they turn a piece of this legendary aircraft into a timeless writing instrument.

Bureau Number 161973 History: Delivered in 1984, BuNo 161973 served as Blue Angels #1, piloted by Commander Pat Moneymaker (1990) and Captain Greg Wooldridge (1991-1992), and #5 under Ken Switzer (1993). It survived a 1990 midair collision, completed a historic 1992 European tour, including a Moscow performance with the Russian Knights, and was retired in 1994.

These blanks are embedded with a small piece of the original material from the aircraft. The piece is approximately 1/8” square/round in size. The embedded components are positioned over a starburst silhouette of the aircraft’s outline.

Sierra embedded blanks with cloth wing material from a WWII Boeing B-17 Flying Fortress.

All blanks will come with one COA per blank.
COAs are 4" x 6" card stock with foil COA seal.

These blanks are embedded with a small piece of the original material from the aircraft. The piece is approximately 1/8” square/round in size. The embedded components are positioned over a starburst silhouette of the aircraft’s outline.

Sierra and Bolt embedded blanks with  WWII Boeing B-29 Superfortress.

All blanks will come with one COA per blank.
COAs are 4" x 6" card stock with foil COA seal.

The Boeing B-29 Superfortress, commonly known as the Superfortress, is a cornerstone of U.S. Army Air Forces strategic bombing capabilities. Introduced in 1944, this subsonic, four-engine propeller-driven heavy bomber was designed for high-altitude long-range missions, enabling it to deliver massive payloads while evading enemy defenses. Powered by four Wright R-3350 Duplex-Cyclone radial engines, each producing 2,200 horsepower, the B-29 can carry up to 20,000 pounds of bombs. Its range exceeds 3,250 nautical miles, extendable with aerial refueling in later variants, making it a pivotal platform for Pacific theater operations.

The B-29’s effectiveness is achieved through its pressurized cabin, remote-controlled defensive turrets, and advanced Norden bombsight, allowing for precise high-altitude bombing and crew safety. A notable component is the aluminum skin, which provides essential lightweight construction and structural integrity. For instance, a section of aluminum skin from such an aircraft, salvaged after decommissioning and use as a ground target for weapons testing, highlights the material’s critical role in enduring combat and environmental stresses. This skin was later repurposed, reflecting ongoing preservation efforts for historical aircraft parts.

With 3,970 units built, the B-29 remains one of the most advanced bombers of its era. Operated by groups such as the 9th Bomb Group from bases in Guam and Tinian, it has seen combat in World War II, including firebombing campaigns over Japan and the atomic missions, delivering devastating strategic strikes.

These aluminum embedded blanks are crafted from Boeing B-29 Superfortress serial number 42-24791’s aluminum skin, salvaged due to aircraft decommissioning. The material is certified and distributed by Hardin Penworks, LLC, and is guaranteed to be 100% authentic.

These blanks are embedded with a small piece of the original material from the aircraft. The piece is approximately 1/8” square/round in size. The embedded components are positioned over a starburst silhouette of the aircraft’s outline.

Sierra embedded blanks with Boeing B-52 Stratofortress "Lucky Lady III" material.

All blanks will come with one COA per blank.
COAs are 4" x 6" card stock with foil COA seal.

The Boeing B-52 Stratofortress, an iconic long-range strategic bomber, has served the U.S. Air Force since 1952 and remains operational today. Nicknamed “BUFF” (Big Ugly Fat Fella), the B-52 is powered by eight Pratt & Whitney J57-P-1WA turbojet engines, each producing 11,400 pounds of thrust, achieving a maximum speed of 630 mph and a range of 8,800 miles. Its 185-foot wingspan and ability to carry 70,000 pounds of weapons, including nuclear and conventional ordnance, made it a Cold War cornerstone. The B-52 saw action in Vietnam, Desert Storm, and Afghanistan, adapting to evolving threats with upgraded avionics and precision-guided munitions.

These pen blanks are crafted from the authentic fuselage of B-52B Stratofortress, tail number 53-0394, known as Lucky Lady III, preserving its historic legacy. Perfect for collectors, veterans, or aviation enthusiasts, they transform this legendary aircraft into a unique writing instrument.

Tail Number 53-0394 History: Delivered in 1955, 53-0394, named Lucky Lady III, led Operation Power Flite in January 1957, becoming the first jet to circle the globe nonstop in 45 hours, 19 minutes, covering 24,325 miles with in-flight refueling. Commanded by Lt. Col. James H. Morris, it earned the 1957 Mackay Trophy and a Life magazine cover. Later renamed “City of El Paso,” it was retired to the National Museum of the United States Air Force and preserved by Walter Soplata in 1984.

These blanks are embedded with a small piece of the original material from the aircraft. The piece is approximately 1/8” square/round in size. The embedded components are positioned over a starburst silhouette of the aircraft’s outline.

Sierra and Bolt embedded blanks with Boeing CH-47 Chinook Military Helicopter metal relic.

All blanks will come with one COA per blank.
COAs are 4" x 6" card stock with foil COA seal.

Powered by two Lycoming T55 turboshaft engines, the CH-47 Chinook can reach speeds of up to 196 mph, making it one of the fastest helicopters in its class. It has a range of about 400 miles and can carry up to 55 troops or 10 tons of cargo, including vehicles, artillery, and supplies. The Chinook is equipped with a rear loading ramp and can perform aerial deliveries and recoveries, adding to its operational flexibility.

The CH-47 has seen extensive service in numerous conflicts, including the Vietnam War, where it was vital for troop movements, resupply missions, and medical evacuations. It has continued to serve in modern conflicts such as those in Iraq and Afghanistan, where its ability to operate in challenging environments has been invaluable. With continuous upgrades, the Chinook remains a crucial asset to the U.S. and allied militaries, symbolizing reliability and adaptability in a wide range of missions.

These blanks are embedded with a small piece of the original material from the aircraft. The piece is approximately 1/8” square/round in size. The embedded components are positioned over a starburst silhouette of the aircraft’s outline.

Sierra and Bolt embedded blanks with Boeing Vertol UH-46D Sea Knight Military Helicopter.

All blanks will come with one COA per blank.
COAs are 4" x 6" card stock with foil COA seal.

The Boeing Vertol CH-46 Sea Knight is an American medium-lift tandem-rotor transport helicopter powered by twin turboshaft engines. It was designed by Vertol and manufactured by Boeing Vertol following Vertol's acquisition by Boeing.  

Development of the Sea Knight, which was originally designated by the firm as the Vertol Model 107, commenced during 1956. It was envisioned as a successor to the first generation of rotorcraft, such as the H-21 "Flying Banana", that had been powered by piston engines; in its place, the V-107 made use of the emergent turboshaft engine. On 22 April 1958, the V-107 prototype performed its maiden flight. During 1961, the US Marine Corps (USMC), which had been studying its requirements for a medium-lift, twin-turbine cargo/troop assault helicopter, selected Boeing Vertol's Model 107M as the basis from which to manufacture a suitable rotorcraft to meet their needs. Known colloquially as the "Phrog" and formally as the "Sea Knight", it was operated across all US Marine Corps' operational environments between its introduction during the Vietnam War and its frontline retirement during 2014.

Following the Sea Knight's first flight in August 1962, the military designation was changed to CH-46A. During November 1964, the introduction of the Marines' CH-46A and the Navy's UH-46As commenced. The UH-46A variant was a modified version of the rotorcraft to perform the vertical replenishment missions. Two UH-46s could transfer up to 100 tons of cargo per hour between ships, using the Navy's "Vertical Replenishment" technique.

These blanks are embedded with a small piece of the original material from the aircraft. The piece is approximately 1/8” square/round in size. The embedded components are positioned over a starburst silhouette of the aircraft’s outline.

Embedded blanks with  Consolidated B-24 Liberator metal material.

All blanks will come with one COA per blank.
COAs are 4" x 6" card stock with foil COA seal.

The Consolidated B-24 Liberator, commonly known as the Liberator, is a cornerstone of U.S. Army Air Forces strategic bombing capabilities. Introduced in 1941, this subsonic, four-engine heavy bomber was designed for long-range missions, enabling it to strike distant targets with significant payloads. Powered by four Pratt & Whitney R-1830-65 Twin Wasp radial engines, each producing 1,200 horsepower, the B-24H can carry up to 8,800 pounds of bombs. Its range exceeds 2,100 nautical miles, making it a vital platform for operations across the European and Pacific theaters during World War II.

The B-24H’s versatility is achieved through its high-aspect-ratio Davis wing, robust airframe, and advanced defensive armament, including up to ten .50-caliber machine guns in turrets and waist positions, allowing for effective defense against enemy fighters. A notable component is the aluminum fuselage skin, which provides essential lightweight construction and structural durability. For instance, a section of fuselage skin from such an aircraft, salvaged after a combat loss over France in 1944, highlights the material’s critical role in enduring battle damage and environmental stresses. This skin was later repurposed, reflecting ongoing preservation efforts for historical aircraft parts.

With over 18,400 units built across all variants, the B-24 remains one of the most produced heavy bombers in history. Operated by units such as the 466th Bomb Group from bases like Attlebridge, England, it saw extensive combat in World War II, conducting strategic bombing raids over Germany, Ploesti oil fields, and Pacific targets, delivering critical strikes and supporting Allied campaigns.

These aluminum embedded blanks are crafted from Consolidated B-24H Liberator serial number 42-95203’s fuselage skin, salvaged following its combat loss. The material is certified and distributed by Hardin Penworks, LLC, and is guaranteed to be 100% authentic.

These blanks are embedded with a small piece of the original material from the aircraft. The piece is approximately 1/8” square/round in size. The embedded components are positioned over a starburst silhouette of the aircraft’s outline.

Sierra embedded blanks with Convair B-36 Peacemaker material.

All blanks will come with one COA per blank.
COAs are 4" x 6" card stock with foil COA seal.

The Convair B-36 Peacemaker, a massive strategic bomber, was the backbone of U.S. nuclear deterrence during the early Cold War. First flown on August 8, 1946, and entering service in 1948, it was the largest mass-produced piston-engine aircraft ever built. Powered by six Pratt & Whitney R-4360-53 Wasp Major radial engines and four General Electric J47 turbojets, it generated 40,800 horsepower, reaching 435 mph and a range of 10,000 miles. Its 230-foot wingspan and 162-foot length enabled it to carry 86,000 pounds of bombs, including nuclear payloads, at altitudes up to 48,000 feet. Designed for intercontinental missions without refueling, the B-36 served with the Strategic Air Command, embodying "peace through strength" until its retirement in 1959. Its size and complexity earned it the nickname "Big Stick."

These pen blanks are crafted from the authentic skin of B-36 Peacemaker, serial number 42-13571, preserving its monumental legacy. Perfect for historians, collectors, or aviation enthusiasts, they transform this Cold War giant into a unique writing instrument.

Serial Number 42-13571 History: Accepted in 1949 as a B-36A, 42-13571 was converted to a B-36B and later an RB-36E reconnaissance variant. Assigned to the 5th Strategic Reconnaissance Wing at Fairfield-Suisun (Travis) AFB, it was retired in 1957 to Fort Worth, Texas, and later scrapped, with parts preserved for posterity.

These blanks are embedded with a small piece of the original material from the aircraft. The piece is approximately 1/8” square/round in size. The embedded components are positioned over a starburst silhouette of the aircraft’s outline.

Sierra and Bolt embedded blanks with Curtis SB2C-5 Helldiver.

All blanks will come with one COA per blank.
COAs are 4" x 6" card stock with foil COA seal.

The Curtis SB2C-5 Helldiver was a World War II dive bomber developed by Curtiss-Wright Corporation, serving as a crucial component of the U.S. Navy's air operations. Introduced in 1943, the SB2C-5 Helldiver was the final variant of the SB2C series, featuring several improvements over its predecessors. It had a more powerful engine, extended fuel capacity, and the capability to carry a greater bomb load, including torpedoes and depth charges.

The Helldiver earned the nickname "The Beast" due to its rugged design and challenging handling characteristics, but it proved highly effective in its role. Despite initial issues with stability and performance, the SB2C-5's ability to deliver accurate, high-damage strikes made it indispensable in the latter stages of the Pacific Theater. It played a pivotal role in the destruction of Japanese naval and ground targets, including during the Battle of the Philippine Sea and the Battle of Leyte Gulf.

The Helldiver was crewed by two—a pilot and a rear gunner—and was equipped with forward-firing machine guns and rear-mounted twin machine guns for defense. Its service continued until the end of World War II, after which it was gradually phased out as newer aircraft were developed.

These blanks are embedded with a small piece of the original material from the aircraft. The piece is approximately 1/8” square/round in size. The embedded components are positioned over a starburst silhouette of the aircraft’s outline.

Sierra embedded blanks with cloth wing material from the Curtiss NC-4 Flying Boat.

All blanks will come with one COA per blank.
COAs are 4" x 6" card stock with foil COA seal.

The NC-4 was a Curtiss NC flying boat built in 1917. It was the first aircraft to fly across the Atlantic Ocean. The NC designation was derived from the collaborative efforts of the Navy and Curtiss. The NC series flying boats were designed to meet wartime needs, and after the end of World War I they were sent overseas to validate the design concept.

The aircraft was designed by Glenn Curtiss and his team, and manufactured by Curtiss Aeroplane and Motor Company, with the hull built by the Herreshoff Manufacturing Corporation in Bristol, Rhode Island.

In May 1919, a crew of United States Navy aviators flew the NC-4 from New York State to Lisbon, Portugal, over the course of 19 days. This included time for stops of numerous repairs and for crewmen's rest, with stops along the way in Massachusetts, Nova Scotia, Newfoundland, and twice in the Azores Islands. Then its flight from the Azores to Lisbon completed the first transatlantic flight between North America and Europe, and two more flights from Lisbon to northwestern Spain to Plymouth, England, completed the first flight between North America and Great Britain.

The transatlantic capability of the NC-4 was the result of developments in aviation that began before World War I. In 1908, Glenn Curtiss had experimented unsuccessfully with floats on the airframe of an early June Bug craft, but his first successful takeoff from water was not carried out until 1911, with an A-1 airplane fitted with a central pontoon. After World War I ended, Curtis and the Navy had built a set of four identical aircraft, the NC-1, NC-2, NC-3 and the NC-4, the U.S. Navy's first series of four Curtiss NC floatplanes made for the Navy by the Curtiss Aeroplane and Motor Company. The NC-4 made its first test flight on 30 April 1919.

These blanks are made from original wing fabric from the Curtis NC-4 Flying Boat. The NC-4 is property of the Smithsonian Institution, since it was given to that institution by the Navy after it was dissembled and returned home from its transatlantic flight. As of 1974, the reassembled NC-4 is on loan from the Smithsonian to the National Museum of Naval Aviation in Pensacola, Florida. The material is certified and distributed by Hardin Penworks, LLC. This material is guaranteed to be 100% Authentic.

These blanks are embedded with a small piece of the original material from the aircraft. The piece is approximately 1/8” square/round in size. The embedded components are positioned over a starburst silhouette of the aircraft’s outline.

Sierra embedded blanks with WWII Curtiss P-40 Warhawk  aluminum wing material.

All blanks will come with one COA per blank.
COAs are 4" x 6" card stock with foil COA seal.

The Curtiss P-40 Warhawk is an American single-engined, single-seat, all-metal fighter and ground-attack aircraft that first flew in 1938. The P-40 design was a modification of the previous Curtiss P-36 Hawk which reduced development time and enabled a rapid entry into production and operational service. The Warhawk was used by most Allied powers during World War II, and remained in frontline service until the end of the war. It was the third most-produced American fighter of World War II, after the P-51 and P-47; by November 1944, when production of the P-40 ceased, 13,738 had been built, all at Curtiss-Wright Corporation's main production facilities at Buffalo, New York.

P-40 Warhawk was the name the United States Army Air Corps gave the plane, and after June 1941, the USAAF adopted the name for all models, making it the official name in the U.S. for all P-40s. The British Commonwealth and Soviet air forces used the name Tomahawk for models equivalent to the original P-40, P-40B, and P-40C, and the name Kittyhawk for models equivalent to the P-40D and all later variants.

P-40s first saw combat with the British Commonwealth squadrons of the Desert Air Force in the Middle East and North African campaigns, during June 1941. No. 112 Squadron Royal Air Force, was among the first to operate Tomahawks in North Africa and the unit was the first Allied military aviation unit to feature the "shark mouth" logo, copying similar markings on some Luftwaffe Messerschmitt Bf 110 twin-engine fighters.

The P-40's lack of a two-speed supercharger made it inferior to Luftwaffe fighters such as the Messerschmitt Bf 109 or the Focke-Wulf Fw 190 in high-altitude combat and it was rarely used in operations in Northwest Europe. However, between 1941 and 1944, the P-40 played a critical role with Allied air forces in three major theaters: North Africa, the Southwest Pacific, and China. It also had a significant role in the Middle East, Southeast Asia, Eastern Europe, Alaska and Italy. The P-40's performance at high altitudes was not as important in those theaters, where it served as an air superiority fighter, bomber escort and fighter-bomber. Although it gained a postwar reputation as a mediocre design, suitable only for close air support, more recent research including scrutiny of the records of individual Allied squadrons indicates that this was not the case: the P-40 performed surprisingly well as an air superiority fighter, at times suffering severe losses, but also inflicting a very heavy toll on enemy aircraft.[9] Based on war-time victory claims, over 200 Allied fighter pilots – from the UK, Australia, New Zealand, Canada, South Africa, the US and the Soviet Union – became aces flying the P-40. These included at least 20 double aces, mostly over North Africa, China, Burma and India, the South West Pacific and Eastern Europe. The P-40 offered the additional advantages of low cost and durability, which kept it in production as a ground-attack aircraft long after it was obsolescent as a fighter.

These blanks are embedded with a small piece of the original material from the aircraft. The piece is approximately 1/8” square/round in size. The embedded components are positioned over a starburst silhouette of the aircraft’s outline.

Sierra and Bolt embedded blanks with  Korean War and Vietnam era Douglas A-4 Sky Hawk Relic.

All blanks will come with one COA per blank.
COAs are 4" x 6" card stock with foil COA seal.

The Douglas A-4 Skyhawk is a lightweight, carrier-capable attack aircraft developed for the U.S. Navy and Marine Corps. Designed by Ed Heinemann of Douglas Aircraft Company, the Skyhawk first flew in 1954 and entered service in 1956. Known for its compact size and agility, the A-4 was affectionately nicknamed "Heinemann's Hot Rod" after its designer.

The A-4 Skyhawk was initially intended as a nuclear-capable bomber but quickly proved its versatility across various roles, including ground attack, close air support, and even as an adversary aircraft in training exercises. Its delta-wing design and absence of wingtip folding mechanisms allowed it to be exceptionally light, which contributed to its impressive speed and maneuverability.

Throughout its service, the Skyhawk saw extensive use in several conflicts, most notably during the Vietnam War. It was a reliable workhorse, performing critical bombing missions, close air support, and interdiction operations. The A-4 was also used by several foreign air forces, including those of Israel and Argentina, where it played key roles in their respective military operations.

The A-4’s simplicity and effectiveness led to its long service life, with some variants remaining in use well into the 21st century. Its durability and adaptability have cemented its place as one of the most successful attack aircraft in military aviation history.

These blanks are embedded with a small piece of the original material from the aircraft. The piece is approximately 1/8” square/round in size. The embedded components are positioned over a starburst silhouette of the aircraft’s outline.

Sierra embedded blanks with Fairchild Republic A-10 Thunderbolt II material.

All blanks will come with one COA per blank.
COAs are 4" x 6" card stock with foil COA seal.

Crafted from the historic Fairchild Republic A-10 Thunderbolt II, our pen blanks offer a unique piece of aviation history. The A-10, affectionately known as the Warthog, is a legendary close air support aircraft designed for durability and precision. Introduced in 1976, it was built to withstand intense combat, featuring a titanium-armored cockpit and a massive GAU-8 Avenger cannon capable of firing 3,900 rounds per minute. Its rugged design and ability to operate at low altitudes made it a vital asset in conflicts like the Gulf War, where it destroyed over 900 tanks and 2,000 military vehicles. The A-10’s distinctive nose art and battle-scarred aesthetic embody its relentless spirit.

Each pen blank is sourced from authentic A-10 materials, meticulously prepared to showcase its heritage. Perfect for collectors, veterans, or aviation enthusiasts, these blanks transform a piece of the Warthog into a functional work of art.

Serial Number 77-0252 History: A-10A 77-0252 was delivered to the U.S. Air Force in 1978, serving with the 81st Tactical Fighter Wing at RAF Bentwaters, a key NATO defense unit during the Cold War. Transferred to the 176th and later the 706th Tactical Fighter Squadron, it deployed to Saudi Arabia for Operation Desert Shield in 1991. Its front fuselage is now displayed at the Cradle of Aviation Museum.

These blanks are embedded with a small piece of the original material from the aircraft. The piece is approximately 1/8” square/round in size. The embedded components are positioned over a starburst silhouette of the aircraft’s outline.

Sierra embedded blanks with Folland Gnat T.1 "Red Arrows" aluminum wing material.

All blanks will come with one COA per blank.
COAs are 4" x 6" card stock with foil COA seal.

The Folland Gnat T.1, commonly known as the Gnat Trainer, is a cornerstone of Royal Air Force advanced jet training capabilities. Introduced in 1959, this subsonic, swept-wing aircraft was designed for affordability and simplicity, enabling it to serve as an effective trainer for fast-jet pilots while being suitable for production in less industrialized nations. Powered by one Bristol Siddeley Orpheus 801 turbojet engine, producing 4,520 pounds of thrust, the Gnat T.1 can reach speeds up to 636 mph and has a range of approximately 500 nautical miles, extendable with external fuel tanks, making it versatile for training and aerobatic displays.

The Gnat T.1’s agility is achieved through its compact design, lightweight construction, and responsive controls, allowing for precise maneuvers and high performance in flight. A notable component is the aluminum wing, which provides essential structural integrity and aerodynamic efficiency. For instance, a wing from such an aircraft, replaced due to damage, highlights the material’s critical role in maintaining flight performance. This wing was later repurposed, reflecting ongoing preservation efforts for historical aircraft parts.

With 105 units built for the RAF out of a total 449 Gnats produced, the Gnat T.1 remains one of the most iconic training aircraft ever developed. Operated primarily by No. 4 Flying Training School at RAF Valley, Wales, it has been pivotal in pilot training and gained fame through its use by the Red Arrows aerobatic team from 1965 to 1979, performing in airshows across the globe with formations like the Diamond Nine.

These aluminum embedded blanks are crafted from a Folland Gnat T.1’s wing, replaced due to damage. The material is certified and distributed by Hardin Penworks, LLC, and is guaranteed to be 100% authentic.

These blanks are embedded with a small piece of the original material from the aircraft. The piece is approximately 1/8” square/round in size. The embedded components are positioned over a starburst silhouette of the aircraft’s outline.

Sierra and Bolt embedded blanks with WWII German A-4 V-2 Ballistic Missile - "Vengeance Weapon 2" recovered relic material.

All blanks will come with one COA per blank.
COAs are 4" x 6" card stock with foil COA seal.

The German V-2 rocket, officially known as Vergeltungswaffe 2 (Vengeance Weapon 2) or Aggregat 4 (A-4), was the world's first long-range guided ballistic missile. Developed during World War II under the direction of Wernher von Braun at the Peenemünde Army Research Center, it first launched successfully in October 1942 and entered operational use in September 1944. Standing 46 feet tall with a diameter of 5.4 feet and weighing 27,000 pounds at launch, the V-2 was powered by a liquid-propellant engine using alcohol and liquid oxygen, achieving speeds over 3,500 mph (Mach 5) and a range of up to 200 miles. It carried a 2,200-pound Amatol warhead, striking targets like London and Antwerp with supersonic speed, making interception impossible. Over 3,000 V-2s were launched, causing significant civilian casualties and terror. Post-war, captured V-2 technology influenced U.S. and Soviet rocket programs, contributing to advancements in rocketry. Nicknamed "Buzzbomb" by some, though more accurately associated with the V-1, the V-2 was the first human-made object to reach space in suborbital flight.

These pen blanks are crafted from authentic fragments of a V-2 rocket, preserving its wartime history. Suitable for historians, collectors, or military enthusiasts, they provide a connection to this missile's past through a functional writing instrument.

Relic History: The fragments originate from a V-2 rocket launched on March 2, 1945. These pieces document German rocketry efforts during the final stages of World War II, offering a tangible link to one of the weapons used in that period.

These blanks are embedded with a small piece of the original material from the aircraft. The piece is approximately 1/8” square/round in size. The embedded components are positioned over a starburst silhouette of the aircraft’s outline.

Sierra and Bolt embedded blanks with WWII German Fi 103 V-1 Flying Bomb "Vengeance Weapon 1" recovered relic material.

All blanks will come with one COA per blank.
COAs are 4" x 6" card stock with foil COA seal.

The V-1 flying bomb (German: Vergeltungswaffe 1 "Vengeance Weapon 1") was an early cruise missile. Its official Reich Aviation Ministry (RLM) designation was Fieseler Fi 103 and its suggestive name was Höllenhund (hellhound). It was also known to the Allies as the buzz bomb or doodlebug and in Germany as Kirschkern (cherry stone) or Maikäfer (maybug).

The V-1 was the first of the Vergeltungswaffen (V-weapons) deployed for the terror bombing of London. It was developed at Peenemünde Army Research Center in 1939 by the Luftwaffe at the beginning of the Second World War, and during initial development was known by the codename "Cherry Stone". Due to its limited range, the thousands of V-1 missiles launched into England were fired from launch facilities along the French (Pas-de-Calais) and Dutch coasts or by modified He 111 aircraft.

The Wehrmacht first launched the V-1s against London on 13 June 1944,[6] one week after (and prompted by) the successful Allied landings in France. At peak, more than one hundred V-1s a day were fired at southeast England, 9,521 in total, decreasing in number as sites were overrun until October 1944, when the last V-1 site in range of Britain was overrun by Allied forces. After this, the Germans directed V-1s at the port of Antwerp and at other targets in Belgium, launching a further 2,448 V-1s. The attacks stopped only a month before the war in Europe ended, when the last launch site in the Low Countries was overrun on 29 March 1945.

As part of operations against the V-1, the British operated an arrangement of air defences, including anti-aircraft guns, barrage balloons, and fighter aircraft, to intercept the bombs before they reached their targets, while the launch sites and underground storage depots became targets for Allied attacks including strategic bombing.

In 1944, a number of tests of this weapon were apparently conducted in Tornio, Finland. On one occasion, several Finnish soldiers saw a German plane launch what they described as a bomb shaped like a small, winged aircraft. The flight and impact of another prototype was seen by Finnish frontline soldiers; they noted that its engine stopped suddenly, causing the V-1 to descend sharply, and explode on impact, leaving a crater 20–30 metres (66–98 ft) wide. These V-1s became known to Finnish soldiers as "flying torpedoes".

These blanks are embedded with a small piece of the original material from the aircraft. The piece is approximately 1/8” square/round in size. The embedded components are positioned over a starburst silhouette of the aircraft’s outline.