Commemorative cover, 8.75 x 5.75, with a cachet honoring Soviet space program, signed in ink by the first 10 Soviet cosmonauts. Signers are: Yuri Gagarin, Gherman Titov, Andriyan Nikolayev, Pavel Popovich, Valeriy Bykovsky, Valentina Tereshkova, Alexei Leonov, Pavel Belyayev, Boris Yegorov, and Konstantin Feoktistov. In fine condition, with a couple tiny creases and a light shade of uniform toning. Pre-certified Scott Cornish and RR Auction COA.
