<Li> Washington District of Columbia and U.S. territories 2009 </Li> <Li> Washington America the Beautiful Quarters 2010--2021 </Li> <P> Non-clad silver quarters weigh 6.25 grams and are composed of 90% silver, 10% copper, with a total silver weight of 0.1808479 troy ounce pure silver . They were issued from 1932 through 1964 . </P> <P> The current rarities for the Washington Quarter silver series are: </P>

When was the last year quarters were made of silver