The Bullion Channel the washington quarter was minted
between 1932 and 1964 is ninety percent silver the total weight is 6.25 grams or .20 troy ounces. The silver weight is 5.63 grams or .18 troy ounces. in order to have a full troy ounce, comparable with an American Silver Eagle, you would need 6 silver quarters Silver quarters make an excellent fractional
sized bullion to keep in your collection i should also point out that they still
make the washington quarters today and you can still buy silver proofs directly from the US mint. but as bullion, your best bet is to
stick to previously circulated coins.