This elegant 0.50 Franc stamp from the République Fédérale du Cameroun depicts the Cercopitheque Moustac, or Moustached Guenon, a colorful monkey native to Central African rainforests. Rendered in earthy browns and vibrant green foliage, with the primate’s signature blue muzzle and white “moustache” finely detailed, the design beautifully captures Cameroon’s tropical biodiversity. Engraved by J. Combet and printed by Chaix, this issue exemplifies early 1960s African wildlife philately—an era celebrating national fauna after independence.