Space Shuttle Data Recording Pen Assembly (Fisher Space Pen Model CH4), measuring 5.25″ long, with attached tether and white Velcro at the end marked in red felt tip, "III." The ballpoint pen famously uses a pressurized ink cartridge to allow use in zero-gravity environments and has a side-button retractor, with the clip on the barrel engraved "Fisher Space." In very good to fine condition, with clear tape at the center.
Provenance: The Spaceflight America Museum and Science Center in Prince Frederick, MD.
