Signing by Molotov, Kolarov, Stalin and Dimitrov
4 лв 1950
Bulgaria
| Country: | Bulgaria |
| Type: | Postage stamps |
| Series: | Contract of the Soviet Union with the friendly Countries |
| Nominal: | 4 лв |
| Year: | 1950 |
| Perforation: | line 11½ |
| Mintage: | 150,000 |
Contract of the Soviet Union with the friendly Countries
 Signing by Molotov, Kolarov, Stalin and Dimitrov |  Bulgarian and Soviet Flags |  Bulgarian and Russian Folk Costumes |  Deliveries of Goods 1$ |