Stamps of Bulgaria, 27 Mar 1976
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postage
1976, Mar 27 waterfowl (1976) unwmk p. 11.75 (6 stamps)
| - | 1s | multi | mute swan Cygnus olor | — | — | |
| - | 2s | multi | Tadorna ferruginea | |||
| - | 3s | multi | Tadorna tadorna | |||
| - | 5s | multi | Anas querquedula | |||
| - | 13s | multi | Anas platyrhynchos | |||
| - | 18s | multi | Netta rufina |
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