Stamps of Russia, 7 Oct 1938
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postage
1938, Oct 7 air sports unwmk p. 12 (9 stamps)
| X | 5k | viobrn | children flying model plane | |||
| X | 10k | olgray | glider | |||
| X | 15k | pink | captive balloon | |||
| X | 20k | bl | dirigible over Kremlin | |||
| - | 30k | cl | ||||
| - | 40k | bl | ||||
| - | 50k | blgrn | ||||
| - | 80k | brn | ||||
| - | 1r | blgrn | four-motor plane |
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