Glory to Soviet Science cover cancelled on 12 april, 1965 with two Cosmonautics Day handstamps.Autographed same day by both cosmonauts of Vostok-3/4 joint flight A.Nikolayev-P.Popovich and wife of Nikolayev cosmonaut Vostok-6 Valentina Tereshkova.
Cover came from personal archives of Andrian Nikolayev.
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This product was added to our catalog on Friday 13 December, 2002.
