Specifications
| Size | Fine Metal Content | Diameter | Weight | Fineness |
| 10 Peso | 7.4995 gram | 22.5 mm | 8.333 gram (.2679 troy oz) | .900 or 21.6 kt. |
| 5 Peso | 3.7497 gram | 19 mm | 4.1665 gram .1339 troy oz) | .900 or 21.6 kt |
| 2.5 Peso | 1.8748 gram | 15.5 | 2.083 gram (.0670 troy oz) | .900 or 21.6 kt |
Each of these three denominations bear the same images. On the obverse, is the profile of national hero, Miguel Hidalgo y Costilla, who instigated the fight for Mexican Independence in 1810. The reverse shows an eagle perched on a cactus with a snake in its beak.
Mint dates:
10 pesos (1905-08, 1910, 1916-17, 1919-20, 1959, 1961-72)
5 pesos (1905-07, 1910, 1918-20, 1955-72)
2.5 pesos (1919-20, 1944-48, 1951-72)