by blink » Wed Jan 25, 2012 4:07 pm
In 1993, coins of the new currency (dated 1992) were issued in denominations of 5, 10, 20 and 50 centavos, 1, 2, 5, 10, 20 and 50 nuevos pesos. The 5 and 10 centavos were minted in stainless steel and the 20 and 50 centavos in aluminium bronze. The nuevo peso denominations were bimetallic, with the 1, 2 and 5 nuevos pesos having aluminium bronze centres and stainless steel rings, and the 10, 20 and 50 nuevos pesos having .925 silver centers and aluminium bronze rings. In 1996, the word nuevo(s) was removed from the coins. New 10 pesos were introduced with base metal replacing the silver centre. The 20 and 50-peso coins are the only currently circulating coinage in the world to contain any silver.