Yuri Gagarin Stamp
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Valentina Tereshkova Stamp
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Sergei Korolev Stamp #2
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Sputnik Stamp
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Sergei Korolev Stamp #1
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Alexey Leonov Stamp
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Konstantin Tsiolkovsky, Rocketry
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Gherman Titov Stamp
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Konstantin Tsiolkovsky Stamp
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Yuri Gagarin Stamp #1
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Mstislav Keldysh Stamp
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First Soviet Satellites Stamp
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Sergei Korolev Stamp
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