Beautifully struck in .9999 fine 24–karat gold, the Mercury Dime Centennial Gold Coin features Adolph A. Weinman’s original Winged Liberty design. This gold dime coin is commonly referred to as the Mercury Dime because of Liberty’s resemblance to the Roman god. Each coin contains one–tenth troy ounce of 24–karat gold, symbolic of the coin’s denomination of one dime, and is struck with a business strike finish. - USMint.gov