2014 American Eagle Gold Proof Four Coin Set. The coins come encapsulated in a blue flock clamshell display case with outer blue protective case and the Certificate of Authenticity. All items are in excellent condition and original. This set was purchased directly from the US Tresauru. The Gold Content of each coin is; One 1oz. $50 Gold Coin with a Gold weight of 1.0000 Troy oz. (31.1035 grams), One 1/2 oz. $25 Gold Coin with a Gold weight of 0.5000 Troy oz. (15.552 grams), One 1/4 oz. $10 Gold Coin with a Gold weight of 0.2500 Troy oz. (7.776 grams), One 1/10 oz. $5 Gold Coin with a Gold weight of 0.1000 Troy oz. (3.110 grams). The compilation of these coins are 91.67% Fine Gold, 3.0% Fine Silver and the balance is Copper. If you have any questions, please contact me.