Souvenir postal cover with a cachet honoring the 1975 Apollo-Soyuz mission, 6.5 x 3.5, signed in black ink and felt tip by Tom Stafford, Vance Brand, and Deke Slayton. Cover is attached by corner tabs to an 8.5 x 11 presentation sheet. In very fine condition. COA Scott Cornish and RRAuction COA.
