90th Birth Anniversary of Zhores I. Alferov (1930-2019)
9*50 ₽ 2020
Russia
| Country: | Russia |
| Type: | Postal blocks |
| Series: | 90th Birth Anniversary of Zhores I. Alferov (1930-2019) |
| Nominal: | 9*50 ₽ |
| Year: | 2020 |
| Size: | 119.5 x 123.5 mm |
| Perforation: | comb 11¾ |
| Mintage: | 14,000 |