Roosevelt and Mercury Dimes, Washington Quarters, and Walking Liberty Franklin and Kennedy Half-Dollars minted in 1964 and earlier are 90% silver. The value of most circulated coins minted in the 1920â€²s through 1964 is primarily from their silver content.
From 1794 to 1935, the United States issued dollar coins in silver.. What Are Silver Dollars and When Were They Minted?. Coinage Act shifted American coins to the gold standard, taking silver out of the domain of coinage for five years
When did silver coins stop and disappear from circulation?. prudent course was to reduce our dependence upon silver for making our coins. â€” Since the life of a silver coin is about 25 years, we expect our traditional silver coins. at the Mexican Mint and is also referred to as the Spanish dollar of the silver eight-real coin.