The 2016 Gold Proof Ten Pound Coin from Gibraltar is a prestigious coin celebrating the Battle of the Atlantic. Weighing 3.11g of 24ct gold, this coin boasts a fineness of 0.999. This rare collectible comes with a Certificate of Authenticity, adding to its allure as a prized addition to any coin collection. The coin, minted in the United Kingdom, commemorates a significant historical event and is a valuable piece of investment for those interested in bullion and numismatics.