Stamps of Central African Republic, 16 Dec 1976
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1976, Dec Viking issue unwmk (no perf info)
| - | 100fr | multi | Phases of Mars landing | — | — | |
| - | 200fr | multi | Viking descending on Mars | — | — | |
| - | 300fr | multi | Viking probe | — | — | |
| - | 500fr | multi | Viking spacecraft | — | — |
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