In 1918, a new 2½ peso coin was introduced. It was composed of .900 fine gold, weighed 2.083 grams, and measured 15.5 millimeters in diameter. Displayed on the obverse was the Mexican coat of arms and the state title (ESTADOS UNIDOS MEXICANOS). Depicted on the reverse was GeneralissimoMiguel Hidalgo y Castilla with the value and year of minting. About 3,745,000 of these coins were minted between 1918 and 1948. From 1951 to 1972, 5,025,087 restrikes dated 1945 were produced, followed by matte restrikes from 1996, which were also dated 1945.