The value of a 1964 United States quarter is primarily determined by its silver content. These coins, minted before 1965, are composed of 90% silver. As such, their intrinsic worth is tied directly to the current market price of silver. Therefore, the inherent metal value generally exceeds the face value of twenty-five cents.
This intrinsic value makes these coins attractive to both collectors and those interested in precious metal investments. The historical context of the coin, marking a transition in US coinage composition, further contributes to its appeal. This era represents a significant shift away from silver-based currency, solidifying its importance in numismatic history.