This is a museum quality model Atocha coin as found

 on the famous shipwreck

 Nuestra Senora De Atocha of 1622

The coin was casted with a portion of silver recovered from the shipwreck

Comes with a certificate of authenticity and a velvet gift pouch

Turtle Frame is Solid Sterling Silver Clad in 14K Yellow Gold set with 4 Reale Coin

Approx. Dimensions: 2.7 cm (not including bale)