The 2½ pesos
On 31 October 1918 Venustiano Carranza, “considering that there is a need to counteract, as far as possible, the scarcity of fractional silver coinage which, due to the high price of the metal, it is not advisable to mint at present according to the Monetary Regime of 1905 because it would cause losses to the Treasury” authorised the production of gold $2 and $2½ coins.
KM-463 1918 2½ Pesos (Stack’s-Bowers auction, 17 May 2024, lot 34360)
The 2½ peso gold coin was composed of 90% gold and 10% copper, and weighed 2.0833 g.
Mintage was
| Year | Mintage |
| 1918 | 1,704,000 |
| 1919 | 984,000 |
| 1920 | 607,060 |
| 1944 | 20,000 |
| 1945 Restrike | 5,025,087 |
| 1946 | 163,000 |
| 1947 | 24,000 |
| 1948 | 63,000 |
KM-463 1945 2½ Pesos Restrike (Stack’s-Bowers auction, 13 April 2025, lot 46144)
Overdate
KM-463 1920/10 2½ Pesos (Stack’s-Bowers auction, 25 August 2023, lot 57290)