Signed book: On the Shoulders of Titans: A History of Project Gemini. Washington, D.C.: NASA’s Scientific and Information Division, 1977. Softcover, 6.75 x 9.75, 625 pages. Signed on the half-title page in black ballpoint, “Charles Conrad, Jr., Gemini V & VI,” and in black felt tip “Richard Gordon Gemini XI.” In fine condition, with some light creasing along joints. Pre-certified Steve Zarelli and RR Auction COA.
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