Stamps of Russia, 28 Mar 1975
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postage
1975, Mar 28 Cosmonauts Day 1975 issue unwmk (no perf info)
| X | 6k | multi | Bust of Yury Gagarin (Moscow) | |||
| - | 10k | multi | Soyuz-17, Salyut-4, A.A. Gubarev, G.M. Gretshko | |||
| - | 16k | multi | Anatoli Filipchenko & Nikolai Rukavishnikov |
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