Question: are us coins made of silver?
Answer: US dimes, quarters, half dollars and dollars were minted in 90% silver until 1964. Produced to save nickel for the war effort, war nickels 1942-1945 are 35% silver (silver nickel production started part way into 1942). Half-dollar coins minted between 1965 and 1970 are 40% silver, but from 1971 on, contain no silver.