Stamps of Czechoslovakia, 11th Communist Party Congress issue
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postage
1958, May 26 11th Communist Party Congress issue unwmk p. 11.75x11.25
| X | 30h | carred | Hammer and Sickle | |||
| X | 45h | grn | Map of Czechoslovakia, with Hammer and Sickle | |||
| X | 60h | dkblgray | Atomic Reactor, Rez |
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