Stamps of Czechoslovakia, 2.80Kc denom
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airmail
1960, Sep 24 Bratislava 1960 issue unwmk p. 11.25x11.75
| X | 2.80Kc | multi | Mil Mi-4 over Bratislava |
1961, Mar 6 Praga 1962 issue p. 14
| - | 2.80Kc | multi | Flower and Bird |
1963, Jun 26 2nd Team Manned Space Flights issue p. 11.5
| X | 2.80Kc | multi | Vostok 6 and Valentina Tereshkova |
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