The Gold Piece Only 129 MS70 Exist with PCGS. The obverse of each coin features the image of the Winged Victory statue and the coat of arms of Mexico, while the reverse features the iconic image of the Mexican volcanoes Popocatepetl and Iztaccihuatl. These coins are highly sought-after by collectors and investors for their rarity and beauty. They are available for sale as a pair to interested buyers looking to add high-quality precious. Metal coins to their collection. 2017 1 oz Silver and Gold Mexican Libertad Coin. Is a troy ounce. 999 fine silver and gold bullion coin minted by Casa de Moneda de Mexico (also known as the Mint of Mexico), the oldest mint in North America, founded in 1535. The Mexican Libertad coin has become a highly desirable and sought after 1 ounce silver bullion coin due to its limited mintage, breathtaking design and beautiful satin finish. Unlike other sovereign bullion coins, the Silver Libertad does not have a nominal Mexican currency value or denomination because the Central Bank of Mexico decided that from the get-go the value of the coin should be based on the market price (spot price) of silver plus a small premium.