what year are quarters silver

Quarters that are made of silver were minted from 1796 to 1964. Quarters minted before 1965 contain 90% silver and 10% copper. The Washington quarter, which features a heraldic eagle clutching arrows and an olive branch as the reverse image, is the most commonly found silver quarter today. Quarters minted after 1964 are not made of silver, but rather a copper-nickel alloy. Washington quarters minted between 1965 and 1970 are 40% silver. It is rare to find quarters minted after 1964 with 90% silver content, but it is possible to find some transitional error coins from 1965 that were struck on a silver planchet instead of a copper-nickel clad planchet.