Mexican Peso ^[MXP]

Circulation coins of the United Mexican States issued prior to the 1970–1971 coinage downsizing reform. This series features the classic mid-20th century heraldic National Coat of Arms (Escudo Nacional) alongside iconic historical, cultural, or indigenous profiles on the reverse, mostly struck in traditional heavy cupronickel and bronze alloys.

The standard circulating coinage of the United Mexican States before the onset of hyperinflation. Introduced in 1970, this series features large-format copper-nickel coins, most notably the iconic 1 Peso bearing the portrait of revolutionary leader José María Morelos. It includes various fractional Sentavo denominations alongside majestic depictions of indigenous Aztec rulers and historical icons.

A major transitional coinage series triggered by the severe economic crisis of the early 1980s. To curb soaring production costs, the Bank of Mexico executed a drastic metallic reform in 1984. All existing denominations were downsized; the famous 1 Peso Morelos was shrunk into a lightweight stainless steel coin, while mid-value coins shifted to cost-effective aluminum-bronze alloys.