The Space Pen was developed as a result of Fisher's experiments with new ink formulations and method of pressurizing a pen. When astronauts started to explore the reaches of outer-space, Fisher realized that no existing pen could perform in the boiling hot, freezing cold, gravity less void. Fisher designed and patented a pump action AG7 pen that would pressurize a special ink
Pocket clip. 3.75 closed. PR4 black ink, medium point cartridge. Writes upside down, at any angle, under water, over grease, and in extreme temperatures. Color: Matte black with NASA logo. Boxed.
Fisher Space Pen Military Matte Black Cap-O-Matic Space Pen
Space Pen - Wikipedia
Fisher Space Pen Black Military Cap-O-Matic Pen Blist Pack
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All brass & steel construction, hard chrome plating, pocket clip & tungsten carbide ballpoint tip Used on NASA Apollo/Shuttle missions, International
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Engraving FISHER SPACE PEN® CANADA
Fisher SPACE PEN Canada