3146130 1991 КОСМОС конверт гашение ГАГАРИН День

Конверт Ниже можно посмотреть краткое описание на английском 1991 RUSSIAN SPACE STAMPED COVER postmark Gagarin Day Old original POSTAL STAMPED ART ENVELOPE 1991 year. Approx.Size: 6.2X4.3 inches (15.8X11.2 cm) Condition: EXCELLENT. Tsialkovsky & Gagarin on cover. Konstantin Eduardovich Tsiolkovsky was an Imperial Russian and Soviet rocket scientist and pioneer of the astronautic theory. He is considered by many to be the father of theoretical astronautics. His works later inspired leading Soviet rocket engineers such as Sergey Korolyov and Valentin Glushko and contributed to the early success of the Soviet space program.