/Stamps by countries/Africa/Sao Tome and Principe/
Endangered animals. Barn owl (Tyto alba) with bison (Bison bison) on the label.
2006

Michel 2794      Scott 1598a     Yvert 2046
Prehistoric art. Cave painting - Steppe wisent.
2008

Michel 3562      Scott 1858a     Yvert 2684
Souvenir sheet. Native americans. On margin of the sheet are chiefs of the Indian tribes, Bison, an American Bald Eagle, Totem.
2009

Michel 4052(B688)    Scott 2122      Yvert B476
 
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