International Stamp Exhibition "Sotsphilex-75", Moscow
50 k 1975
USSR
0.63 - 0.76$
price on 05.02.2023
| Country: | USSR |
| Type: | Postal blocks |
| Series: | International Stamp Exhibition Socphilex-75 |
| Nominal: | 50 k |
| Year: | 1975 |
| Material: | coated |
| Size: | 68 x 94 mm |
| Perforation: | frame 12 x 12¼ |
| Mintage: | 1,150,000 |