Stamps of Bulgaria, 13.5x13.75 perf
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postage
1979, Aug 31 100th Anniversary of the National Health Authority issue unwmk p. 13.5x13.75
| X | 2s | multi |
1979, Dec 29 25th Anniversary of Television in Bulgaria issue
| X | 5st | multi | Screen with Emblem of the Bulgarian Television |
1980, Sep 19
| - | 5s | multi | Jordan Jowkow | — | — |
1981, Mar 12 Bulgarian Communist Party Congress 1981 issue
| - | 5st | viobl & red | Roman Numeral XII | |||
| - | 13st | viobl & red | Red Stars Year Numbers | |||
| - | 23st | viobl & red | Punched Tape as Number 8 |
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