2022 Cook Islands 1 oz Silver Key To My Heart Coin Antiqued. 999 Fine w/Box & COA. The coin is key-shaped and has a beautiful antique finish. On the obverse side, you may see an effigy of Her Majesty, the name “ELIZABETH II”, the face value “5 DOLLARS”, the country of issue “COOK ISLANDS”, and the year of issue “2022″. This fantastic issue of Cook Islands doubles as not only a low mintage collector coin but also as a jewelry item as the design incorporates a pass-through that allows the “Key to my Heart” to be worn as a pendant. NGC MS 70 ANTIQUED. Metal Content: 1 Troy Ounce (31.1 Grams). Dimensions: 59 X 27 mm. Mint Capsule, Window box Case, Certificate of Authenticity.