Russia
face value - 3*1.30+3*1.75+3*2+3*3 Russian ruble
| Country: | Russia |
| Type: | Postal blocks |
| Series: | 20th Century Science |
| Nominal: | 24.15 ₽ |
| Year: | 2000 |
| Material: | coated |
| Size: | 170 x 165 mm |
| Perforation: | comb 12¼ x 12 |
| Mintage: | 300,000 |