Mexico Silver

Mexican Silver Coins

Most Mexican silver coins from the 20th century Peso series (1 Peso to 100 Pesos) include a small inscription of their fineness (the silver purity) directly on the coin’s design. It usually appears as a decimal, such as “.900”, “.720”, or “.925”, often near the edge, beside the date, or in the legend around the coin.

For example:

• The 1947–1948 5 Pesos Cuauhtémoc coin clearly reads “LEY .900”, meaning it is 90% silver.

• The 1957–1967 10 Pesos Hidalgo coins are marked “.900”, indicating 90% purity.

• The 1977–1979 100 Pesos Morelos coins show “.720”, meaning 72% silver.

The word “LEY” before the number is Spanish for law (i.e., legal standard), so “LEY .900” means the coin’s composition is set by law to be 90% silver.

Modern Mexican Libertads

First issued in 1982, the Mexican Libertad is Mexico’s official silver bullion coin. Struck in .999 fine silver, these coins are available in fractional sizes (1/20 oz, 1/10 oz, ¼ oz, ½ oz), the popular 1 oz, and larger formats like 2 oz, 5 oz, and kilo coins. Libertads do not have a face value but are backed by the Mexican Mint, making them directly tied to silver’s market value. Available Here

Their designs — featuring the Winged Victory statue on the obverse and the Mexican national seal(s) on the reverse — make them highly sought after worldwide.