Stamps of Czechoslovakia, Space Research 1977 issue
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postage
1977, Oct 4 Space Research 1977 issue unwmk p. 11.25x11.75 (5 stamps)
| X | 20h | multi | S. P. Koroliov | |||
| X | 30h | multi | Yuri Gagarin | |||
| X | 40h | multi | Aleksei Leonov | |||
| - | 1kc | multi | Neil Armstrong | |||
| - | 1.60kc | multi |
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