Question: are any mexican coins silver?
Answer: Between 1960 and 1971, new coinage was introduced, consisting of brass 1- and 5-centavos, cupro-nickel 10-, 25-, and 50-centavos, 1-, 5-, and 10-pesos, and silver 25-pesos (only issued 1972). In 1977, silver 100-pesos were issued for circulation.