American Gold Eagle (1/10 oz) $5 - BU 1999 Specifications Composition is 91.67% gold, 3% silver, balance copper with a reeded edge. Weight and diameter differs between the one, half, quarter, and tenth ounce sizes. The one ounce coin, $50 face value, is 1.287 inches (32.70 mm) in diameter, contains one gold troy ounce and weighs 1.0909 troy ounces (33.931 g). The one-half ounce coin, $25 face value, is 1.063 inches (27.00 mm) in diameter, contains 0.5000 gold troy ounce and weighs 0.5455 troy ounce (16.966 g). The one-quarter ounce coin, $10 face value, is 0.866 inch (22.00 mm) in diameter, contains 0.2500 gold troy ounce and weighs 0.2727 troy ounce (8.483 g). The one-tenth ounce coin, $5 face value, is 0.650 inch (16.50 mm) in diameter, contains 0.1000 gold troy ounce and weighs 0.1091 troy ounce (3.393 g). Bullion coins don't feature a mint mark. Ships in protective coin flip. Ships USPS Ground Advantage, usually within 3 business days of payment, with delivery confirmation.