2016 CA KING OF DINOSAURS $20 Fine Silver Coin Tyrannosaurus Rex $20 Mint State The coins weight and purity account for slightly more than one-quarter troy ounce of silver (0.255919943 ounces). Each coin is placed inside a protective clear pouch that is attached to an illustrated display card complete with specifications and a certificate of authenticity. The card features an image of a T-Rex in what would have been its natural setting. Composition: fine silver (99.99% pure) Finish: specimen Weight (g): 7.96 Diameter (mm): 27 Edge: serrated Certificate: not serialized Face value: 20 dollars