Image #1
WORLDWIDE AIR POST STAMPS AND POSTAL HISTORY
Soviet Union
Lot #
141 | 
| Scott # C37-39
| 1933, "Stratostat USSR 1", 5k, 10k and 20k, three covers franked by these stamps, the first one sent from Moscow to Stalingrad, second one - locally sent in Moscow, the last one - from Baku to Kashira (Moscow Obl.), mainly VF, Est. $300-$400 . |