International Geophysical Year: Rocket Leaving Earth
40 k 1957
USSR
| Country: | USSR |
| Type: | Postage stamps |
| Series: | International Geophysical Year (1st Issue) |
| Nominal: | 40 k |
| Year: | 1957 |
| Material: | ordinary |
| Size: | 18 x 26 mm |
| Perforation: | comb 12 x 12½ |
| Mintage: | 1,000,000 |
International Geophysical Year (1st Issue)
