Bulgaria
| Country: | Bulgaria |
| Type: | Postage stamps |
| Series: | Congress of the Bulgarian Communist Party |
| Nominal: | 5 ст |
| Year: | 1981 |
| Perforation: | comb 13½ x 13¾ |
Congress of the Bulgarian Communist Party
 Roman Numeral "XII" |  Red Stars, Year Numbers 0.12$ |  Punched Tape as Number "8" 0.16$ |  Georgi Dimitrov, Dimitur Blagoev, Founder of the BCP 0.31$ |