The original Space Pen was conceived by the late Paul Fisher in 1948. Cited as an outstanding example of industrial art, it has been exhibited for a number of years in the New York Museum of Modern Art . This pen writes underwater, upside down and in extreme temperatures from -30? to +250? F! Astronauts, mountain climbers, deep sea divers, just to name a few--have depended on Fisher Space Pens . Pressurized ink cartridge - Silver finish with American flag design - Black ink - Medium point - Retractable style