Gambia. Silver Proof Set of 20, 40 Dalasis 1977, World Wildlife Conservation, Spur-winged goose (Silver 38,61 mm, weight 28,28 g. .925) and Aardvark (Silver 42 mm, weight 35 g. .925), KM 17, 18, Condition Proof, original box and certificates, slight tarnish - patina, small spots, photo taken through the plastic in the cap