In 1947, a new issue of silver coins was struck, with the 50-centavo and 1-peso in .500 fineness and a new 5-peso coin in .900 fineness. A portrait of José María Morelos appeared on the 1 peso and this was to remain a feature of the 1-peso coin until its demise. The silver content of this series was 5.4 g to the peso. This was reduced to 4 g in 1950, when .300 fineness 25- and 50-centavo, and 1-peso coins were minted alongside .720 fineness 5 pesos. A new portrait of Morelos appeared on the 1 peso, with Cuauhtemoc on the 50-centavo and Miguel Hidalgo on the 5-peso coins. No reference was made to the silver content except on the 5-peso coin. During this period 5 peso, and to a lesser extent, 10-peso coins were also used as vehicles for occasional commemorative strikings.