Russia
| Country: | Russia |
| Type: | Postal blocks |
| Series: | Summer Olympic Games 2012 - London |
| Nominal: | 50 ₽ |
| Year: | 2012 |
| Material: | chalky |
| Size: | 110 x 90 mm |
| Perforation: | frame 11½ |
| Mintage: | 85,000 |
Summer Olympic Games 2012 - London
 XXX Olympic Games in London, overprint |  XXX Olympic Games in London |