See melt values for U.S. silver coins, including morgan silver dollars and silver quarters. NGC provides historical coin melt values, coin price information and a. Any United States dime, quarter, half dollar or dollar that is dated 1964 or earlier is made of 90% silver. In the dime series, all coins dated 1965. Silver Dollars. Silver dollars have a $1.00 face value but are at least 90% silver. Produced and sold for collectors, there are a variety of silver.