Stamps of Poland, 31 May 1954
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1954, May 31 International Gliding Championship 1954 issue unwmk p. 9-14.5
| - | 45g | dkgrn | Glider & Framed Clouds | |||
| X | 60g | pur | Glider flags | |||
| - | 60g | brn | Glider flags | |||
| X | 1.35z | bl | Glider large white cloud |
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