Stamps of Vietnam, space exploration 20th issue
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postage
1978, Aug 28 space exploration 20th issue unwmk (12 stamps)
| - | 12xu | multi | Sputnik, imperf | |||
| X | 12xu | Sputnik, p. 12 | — | — | ||
| - | 12xu | multi | Venus I, imperf | |||
| X | 12xu | Venus I, p. 12 | — | — | ||
| - | 30xu | multi | Space capsules docking, p. 12 | |||
| - | 30xu | multi | Space capsules docking, imperf | — | — | |
| - | 40xu | multi | Molniya I satellite, p. 12 | |||
| - | 40xu | multi | Molniya I satellite, imperf | — | — | |
| - | 60xu | multi | Soyuz, p. 12 | |||
| - | 60xu | multi | Soyuz, imperf | — | — | |
| - | 2d | multi | ACubarev & G Grecko Astronauts, p. 12 | |||
| - | 2d | multi | ACubarev & G Grecko Astronauts, imperf | — | — |
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