Stamps of Mongolia, 1966, missing perf, not overprinted
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postage
1966, May 31 World Cup 1966 issue unwmk (no perf info)
| - | 4t | multi |
1966, Jun 7 15th Mongolian Communist Party Congress issue
| - | 30m | multi |
1966, Jul 11 45th Anniversary of the People's Revolution issue
| - | 30m | multi | Damdin Sükhbaatar |
1966, Dec 28 satellites (1966)
| - | 10m | multi | 12x11.25 | |||
| - | 1t | multi | 12x11.25 |
airmail
1966, Jul 10 Luna 10 issue
| - | 4t | multi | — | — |
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