Postal cover, postmarked July 17, 1962, signed on the front in black felt tip by Wally Schirra, Scott Carpenter, and Gordon Cooper, in blue ballpoint by Virgil I. Grissom, and in black ballpoint by Deke Slayton. In fine condition, with expected postal cancellation and light pencil lines beneath each signature. Accompanied by a full letter of authenticity from Scott Cornish. Pre-certified Steve Zarelli and RR Auction COA.
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