Russia
Unique serial number at bottom right.
| Country: | Russia |
| Type: | Postal blocks |
| Series: | 190th Anniversary of GOZNAK |
| Nominal: | 20 ₽ |
| Year: | 2008 |
| Size: | 130 x 65 mm |
| Perforation: | 12½ |
| Mintage: | 120,000 |