Stamps of Russia, 7 Oct 1957
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postage
1957, Jul 4 IGY 1957 issue unwmk p. 12
| X | 40k | multi | c.rocket leaving earth |
1957, Oct 7 4th World Trade Union Congress issue
| X | 40k | multi |
1957, Oct 7 Tsiolkovsky 100th issue
| X | 40k | multi | Konstantin Tsiolkovsky |
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