Coin - Silver with 14K Gold Overlay Dimensions- 1" diameter(slightly larger than a quarter) Weight - 6.7 grams Now You Can Own a Piece of History! Atocha Silver is More Pure than Sterling Silver! The silver coin was hand cast using a formulated blend of silver ingots recovered from the Sunken Treasure of the Nuestra Senora de Atocha and fine Sterling Silver. The Nuestra Senora de Atocha (Our Lady of Atocha) Spanish Galleon shipwrecked on September 5, 1622, when it struck a reef during a hurricane and sank in the Florida keys, taking with her 264 souls. The Galleon contained 47 troy tons of treasure, which were scattered over 50 miles of the ocean floor. Only 5 people survived the wreck. The treasure remained buried at sea until 1985 when salvager Mel Fisher found the mother lode. This coin contains Atocha Silver that is over 370 years old. The coin is a limited edition. It is shipped in the original Mel Fisher packaging with a Certificate of Authenticity and Velvet Pouch. Each Certificate of Authenticity includes the following information: Bar Number Unique silver bar used in minting the coinManifest Number Manifest on which the recovered silver bar was recordedAtocha Seal An embossed Authentic Atocha Silver Seal Our Atocha Jewelry is Shipped in a Gift Box.