what years where american coins made of silver?

Question

i wanted to know what years some coins where made with silver. like the dime nickel quarter and jfk piece

Answer 1

Before 1964 (65 and 66 coins were dated 64 in silver) the dime and quarter coins were .90 silver.

The Kennedy half was .90 silver up to 1964 and .40 silver until 1970

Nickels of WWII (42-45) were .35 silver

Commemorative Dollars and dollar coins before the 1960s would be expected to be .90 silver