Uncommon Soviet postal cover, 6.25 x 4.25, with a color cachet honoring ‘Cosmonautics Day,’ signed in ballpoint and felt tip by 11 notable cosmonauts, including: Vladislav Volkov, Valentina Tereshkova, Valery Kubasov, Valery Bykovsky, Anatoly Filipchenko, Viktor Gorbatko, Vladimir Shatalov, and others. In fine condition.
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