Russia
Acknowledged, but not listed by SG.
| Country: | Russia |
| Type: | Postal blocks |
| Series: | Geographic Expeditions |
| Nominal: | 9*1 ₽ |
| Year: | 1992 |
| Size: | 217 x 120 mm |
| Perforation: | comb 11¾ |
| Mintage: | 250,000 |