Sierra Leone year 1983 WWF Fauna Monkeys stamps FDC set The Sierra Leone issue for 1983 focuses on one of Africa’s most recognizable and endangered primates. Here are the details for the Sierra Leone 1983 WWF Fauna Monkeys stamp set, focusing on the First Day Cover (FDC) set you asked about: Sierra Leone 1983 WWF – Chimpanzees The stamp set features the Western Chimpanzee (Pan troglodytes verus), a subspecies found in Sierra Leone, which is home to a significant population of these endangered great apes. FeatureDetailCountrySierra LeoneYear of Issue1983Complete Set Quantity4 individual stampsThemeWorld Wildlife Fund (WWF) – Fauna (Great Apes / Primates)Animal FeaturedChimpanzee (Specifically, the Western Chimpanzee)Format RequestedFirst Day Cover (FDC) Set of 4Catalog Numbers (Stamps)Scott: 586-589Michel: 713-716Stanley Gibbons (SG): 745-748