USSR
| Country: | USSR |
| Type: | Postage stamps |
| Series: | 2nd International Polar Year - Air Mail Express |
| Nominal: | 50 k |
| Year: | 1932 |
| Size: | 52 x 26 mm |
| Perforation: | line 12½ |
| Mintage: | 75,000 |
2nd International Polar Year - Air Mail Express
 Arctic Map, Aircraft and Ice-breaker |  Arctic Map, Aircraft and Ice-breaker |