2020 Mexican 2 oz Libertad coin is a perfect PCGS MS70 and a First Strike. Silver Libertads are Mexico's most precious coins, and this 2020 edition continues the series that began in 1982. 2020 is the first year that the 2 oz Silver Libertad has been minted by the Casa de Moneda de Mexico. The obverse features the National Shield surrounded by a variety of eagle designs that have been used as national emblems over the years, as well as the eagle in the Codex Mendocino. The National Shield's sculptural relief design.