The 1965 Peso is 10% silver. The 1976 is 0% silver.
I'm assuming that your 50 centavos is 0%, that your 1950 Peso might be 30%, that your 1974 Hong Kong is 0%, and that your 1907 20 centavos is of a higher silver percentage, if memory serves, 80%?
I'm assuming that your 50 centavos is 0%, that your 1950 Peso might be 30%, that your 1974 Hong Kong is 0%, and that your 1907 20 centavos is of a higher silver percentage, if memory serves, 80%?





















