Ive been looking around and coming up with different awnsers, It sounds like silver what is the percentage ? Any help would be much appreciated Thanks
The last issue of silver Mexican one pesos was between 1957/1967 (km459) and they were only 10% silver.
As the others have said, 0% silver. It's 9.07g of Copper-Nickel. 1971 was the largest production run for the series (426,222,000).