US quarters (and dimes, half dollars and silver dollars) were never made of pure silver. Through 1964, they were 90% silver and 10% copper. From 1965 onward, circulating quarters have been produced from 91.667% copper and 8.333% nickel (although some proof coins have been produced of 90% silver in recent years for collectors).
Dimes and quarters were changed to copper-nickel in 1965 when the price of silver increased to the point where coins were worth more than their face value. It was possible to go to the bank and get a roll of quarters for $10, then turn around and sell it to a metal dealer for 3 or 4 times that amount. As a result, most silver coins disappeared from circulation.
Half dollars were changed to 40% silver in 1965, then to copper-nickel in 1971.
1964 was the last year US quarters were made of Silver.
For general circulation, 1964.
1964 was the last year for a 90% silver dime. No circulating coin was pure silver.
The last year for silver dimes and quarters, as well as 90% half dollars was 1964. Halves 1965-70 were then 40% silver. All dimes and quarters 1965-present and half dollars 1971-present are copper and nickel.
1935. Note U.S. dollars were never pure silver. They contained about 10% copper.
1964 was the last year US quarters were made of Silver.
1964 was the last for quarters and dimes
For general circulation, 1964.
1964 was the last year for a 90% silver dime. No circulating coin was pure silver.
The last year for silver dimes and quarters, as well as 90% half dollars was 1964. Halves 1965-70 were then 40% silver. All dimes and quarters 1965-present and half dollars 1971-present are copper and nickel.
1935. Note U.S. dollars were never pure silver. They contained about 10% copper.
The last state quarters were released in 2008.
1964 was the last year for 90% silver quarters made for everyday use, all quarters from 1965 to the present are copper-nickel.
1964 was the last year the US produced silver quarters for circulation.
The last year for silver dimes and quarters was 1964.
All quarters dated 1964 and before are silver, all quarters released for general circulation dated 1965-present are not silver. The US mint has released quarters struck in 40% silver for collectors during the US Bicentennial and 90% silver proof sets for collectors in 1992-present.
US halves were never made of pure silver, all pre-1965 (1964 was the last) coins are 90% silver and 10% copper. From 1965 to 1970 they were made of 40% silver and 60% copper. From 1971 to the present they are 75% copper and 25% nickel bonded to an inner core of pure copper.