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| Gemini 1 launch cover with Orbit Covers cachet, postmarked April 8, 1964. Signed by Charles Mathews, manager of the Gemini program. |
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| Photo: "Charles W. Mathews, Project Gemini manager, in his office in the NASA Manned Spacecraft Center in Houston, Texas. On his desk is a model of the two-man Gemini capsule and Agena satellite as they will appear after they have met in space and linked up in orbit. Mathews reported the first astronaut flight will be relatively short, probably only three orbits lasting about five hours. (APNEWSFEATURES PHOTO). March 15, 1964." |
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| Photo: Gordon Cooper (second from left) and Neil Armstrong (right) inspecting the Gemini capsule, scheduled to be fired into orbit on April 8, 1964. |
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| Gemini 1 launch cover with Swanson cachet, postmarked April 8, 1964. |
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| Photo: Gemini crew with a replica of the launch vehicle, October 31, 1962. |
