Stamps by countries | Europa | Bulgaria |
 |
 |
Sofia Zoo. Bison.
23.05.1966
Michel 1624 Scott 1491 Yvert 1422 |
 |
 |
Rare mammals. Wisent.
29.06.1973
Michel 2252 Scott 2102 Yvert 2012 |
 |
 |
Animals acclimatized in Bulgaria. Wisent.
25.09.2000
Michel 4486 Scott 4161 Yvert 3883 |
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