If it’s a Washington Quarter (or similar) from 1964 or earlier, then it’s composed of 90% silver and 10% copper, with a total weight of 6.25 grams. • In that composition, it contains approximately 0.1808 troy ounces of pure silver. • Using the current silver price (~US $50.82 per troy ounce according to the source), the melt value comes out to about US $9.19 for that coin. View quoted note →

gotta bust out that metal detector again!