USSR
0.24 - 0.29$
price on 30.12.2022
| Country: | USSR |
| Type: | Postage stamps |
| Series: | International Congresses 1967 |
| Nominal: | 6 k |
| Year: | 1967 |
| Size: | 40 x 28 mm |
| Perforation: | comb 11½ x 11¼ |
| Mintage: | 4,000,000 |
International Congresses 1967
 7th General Assembly of the ISO, 1967, Moscow 0.12$ |  5th International Mining Congress, 1967, Moscow 0.24$ |