Original Apollo-Soyuz Test Mission crew-signed color beta patch, 5.5 x 5.5, signed by Deke Slayton, Thomas Stafford, Vance Brand, Alexei Leonov and Valeri Kubasov. Accompanied by a letter of authenticity signed by Bobbie Slayton, wife of Donald 'Deke' Slayton. Fading and yellowing to Slayton, Stafford, and Leonov, otherwise fine condition. RRAuction COA.
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