Single-sided cue card flown on the Skylab 3 (SL-4) mission, 6.5 x 8, signed and flight-certified along the edge in black felt tip by Science Pilot Ed Gibson, "Flown on Skylab, Ed," and signed in the corner, "Ed Gibson, Science Pilot, Skylab III." The cue card is headed "Major 55 Spectral Lines" and charts temperature against height. The back features four small Velcro tabs and is imprinted with the Skylab 3 insignia. In fine condition, with small pieces of tape at the top and bottom.
This item is Pre-Certified by STEVE ZARELLI
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