USSR
| Country: | USSR |
| Type: | Postage stamps |
| Series: | Birth Centenary of Alexander Karpinsky |
| Nominal: | 30 k |
| Year: | 1947 |
| Size: | 26 x 37 mm |
| Perforation: | line 12½ |
| Mintage: | 3,000,000 |
Birth Centenary of Alexander Karpinsky
 Birth Centenary of Alexander P. Karpinsky |  Birth Centenary of Alexander P. Karpinsky |