USSR
stamp from souvenir sheet
| Country: | USSR |
| Type: | Postage stamps |
| Series: | Cosmonautics Day, 1971 |
| Nominal: | 16 k |
| Year: | 1971 |
| Size: | 31 x 25 mm |
| Perforation: | 12 x 12½ |
| Mintage: | 1,200,000 |
