Four items, each signed “H. Oberth” in ballpoint or felt tip, the latter three bearing affixed stamps with first day cancellations: one commemorative cover honoring Project Gemini; one color 8 x 10 NASA photo of Aldrin descending the Apollo 11 ladder onto the lunar surface; one souvenir typescript of the International Space Treaty; and one souvenir print of the Marconi wireless telegraphy patent diagram. In overall fine condition. RR Auction COA.
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