This beautiful coin has a mintage of only 999 pieces worldwide. This is another release in the Treasures of World series, which is dedicated to some of the most famous paintings. Each coin contains 1 oz of. Mintage of only 999 pieces. Comes in a beautiful box with a certificate of authenticity. Reverse: Features a multicolor replica of the “Lady with an Ermine” by Leonardo da Vinci. The coin has a square shape and the outside of the coin resembles a frame. Sovereign coin backed by the Niue government. Our commitment is to provide you with quality coins and collectibles at the best possible prices. This piece is no exception.