50th Anniversary of the First Flight to Stratosphere
8*20 k 1983
USSR
Not listed by SG.
| Country: | USSR |
| Type: | Postal blocks |
| Series: | 50th Anniversary of the First Flight to Stratosphere |
| Nominal: | 8*20 k |
| Year: | 1983 |
| Perforation: | comb 11½ x 12 |