Russia
Unique serial number at left.
| Country: | Russia |
| Type: | Postal blocks |
| Series: | International Antarctic Survey |
| Nominal: | 2*5 ₽ |
| Year: | 2003 |
| Material: | coated |
| Size: | 90 x 65 mm |
| Perforation: | frame 11¼ x 12¼ |
| Mintage: | 100,000 |