Certain United States quarters, specifically those minted in 1964 and earlier, contain 90% silver. These coins were produced using a composition of 90% silver and 10% copper. This distinguishes them from later quarters, which are made of clad metal consisting of layers of copper and nickel.
The presence of silver in pre-1965 quarters gives them intrinsic value beyond their face value. The price of silver fluctuates, and thus the melt value of these coins can exceed 25 cents. This historical production method occurred due to rising silver prices, leading the U.S. Mint to transition to less expensive metals. Consequently, silver quarters are of interest to collectors, investors, and those seeking precious metals.