This key-shaped coin is the second edition in the Silver Key series and used Smartminting® technology to give it the Ultra High Relief. It has a mintage of only 2,500 pieces worldwide. Contains 1 oz of. Low mintage of only 2,500 coins. Comes in a framed display box in the original capsule with a certificate of authenticity. Obverse: Displays a profile portrait of Her Majesty Queen Elizabeth II. Reverse: Features a detailed image representing a crown. Sovereign coin backed by the Cook Islands government.