Dim. Blagoev open the Congress on the Mountain Busludja
9 лв 1951
Bulgaria
| Country: | Bulgaria |
| Type: | Postage stamps |
| Series: | First Congress of the Bulgarian Social Democratic Party |
| Nominal: | 9 лв |
| Year: | 1951 |
| Perforation: | line 10¾ |
| Mintage: | 150,000 |
First Congress of the Bulgarian Social Democratic Party
 Dim. Blagoev open the Congress on the Mountain Busludja |  Dim. Blagoev open the Congress on the Mountain Busludja |  Dim. Blagoev open the Congress on the Mountain Busludja |