Michel # 717A; Scott # 685; Stanley Gibbons # 871; Yvert # 539;
The Common Chimpanzee .
Pan troglodytes.
Color: multicolored
Date of Issue: 14.05.1975
Face Value: 1 GNS
Designer: no information
Stamp Size: 36 × 36 mm.
Stamp Quantity:no information
Perforation: 13½