Stamps of Bulgaria, 20 Dec 1991
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postage
1991, Dec 20 medicinal plants (1991 Bulgaria) unwmk p. 13 (6 stamps)
| X | 30s | multi | Pulsatilla vernalis | — | — | |
| X | 0.40l | multi | Pulsatilla pratensis | |||
| X | 0.55l | multi | Pulsatilla halleri | |||
| X | 0.60l | multi | Aquilegia nigricans | |||
| X | 1l | multi | Hippophae rhamnoides | |||
| X | 2l | multi | Ribes nigrum |
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