A winged Victoria of Mexican Independence Victory Column in front of a landscape with the volcanoes Popocat’petl and Iztaccihuatl graces the front, while the reverse contains the coat of arms of Mexico surrounded by historical mexican coats of arms. The Mexican Libertad design has changed over the years. Some investors refer to this Mexican silver coin as the Mexican Onza while others call it the Mexican Libertad. They are one in the same coin. These beautiful silver coins are 1/20 troy ounce in weight and are 99.9% pure silver. The Mexican Libertad 1/20 oz silver coin was one of the only silver bullion coins available in the early 1980s so there is a large population of older coins sitting in bullion investor’s hands. The silver onza is not as popular as it once was given the large number of competing silver bullion coins in the market. However, it is recognized worldwide for its beauty and quality and collectors and investors covet owning at least a few of these silver coins.