Cameroon – Butterfly – Charaxes fournierae – 1,000 CFA – 2011 – 3-D Proof Silver Crown – COA – The first coin in a new series of exotic butterflies from the west African Republic of Cameroon, the series is officially called “Papillons Exotiques.” This stunning proof silver crown bears a replica of this rare species mounted on the surface of the coin, giving it a three-dimensional appearance. Total mintage worldwide was limited to 2,500 pieces and the coin comes with a Certificate of Authenticity. (Price Estimate 149,99$)