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Museum of the History of Cosmonautics named after K.E. Tsiolkovsky in Kaluga
USSR. Kaluga. October 21, 1968. Physical instruments presented by the founder of theoretical cosmonautics, scientist and inventor Konstantin Eduardovich Tsiolkovsky to his grandchildren, in the K. E. Tsiolkovsky State Museum of the History of Cosmonautics. Pyotr Maslov/TASS