Russia
Unique serial number at bottom left.
| Country: | Russia |
| Type: | Postal blocks |
| Series: | 300th Anniversary of Tula Arms Plant |
| Nominal: | 50 ₽ |
| Year: | 2012 |
| Material: | coated with a partial varnishing |
| Size: | 70 x 87 mm |
| Perforation: | frame 12 |
| Mintage: | 95,000 |