Commemorative cover with a color cachet honoring the Apollo-Soyuz Test Project, postmarked in Moscow and Cape Canaveral on July 15, 1975, signed in black ink and ballpoint by the complete cooperative crew: Tom Stafford, Vance Brand, Deke Slayton, Alexei Leonov, and Valery Kubasov. In fine condition. Accompanied by a full letter of authenticity from Zarelli Space Authentication.
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