Stamps of Bulgaria, 6 May 1988
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postage
1988, May 6 birds (1988 Bulgaria) unwmk p. 13x13.25 (6 stamps)
| - | 5st | multi | Larus argentatus | |||
| - | 5st | multi | Ciconia ciconia | |||
| - | 8st | multi | Corvus corone cornix | |||
| - | 8st | multi | Ardea cinerea | |||
| - | 10st | multi | Accipiter gentilis | |||
| - | 42st | multi | Bubo bubo |
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