USSR
| Country: | USSR |
| Type: | Postage stamps |
| Series: | Birth Centenary of I.I. Mechnikov |
| Nominal: | 1 ₽ |
| Year: | 1945 |
| Material: | ordinary |
| Size: | 26 x 37 mm |
| Perforation: | line 12¼ |
| Mintage: | 1,500,000 |
Birth Centenary of I.I. Mechnikov
 Birth Centenary of I.I. Mechnikov (1845-1916) 0.24$ |  Birth Centenary of I.I. Mechnikov (1845-1916) |