The 1979 Mo PCGS MS64 Type 3 (less common) Mexico Casa De Moneda Onza Silver Coin is a valuable collectible item minted by the Mexican Mint. This silver coin features the Mexican Libertad design and has a fineness of 0.925. It is certified by PCGS and contains 1 oz of precious silver content per unit. This coin from Mexico is a unique addition to any coin collection, showcasing the rich history and craftsmanship of the Mexican minting process.