A United States ten-cent coin minted in 1964, composed of 90% silver and 10% copper, possesses an intrinsic worth beyond its face value. This is due to the precious metal content of the coin itself. The worth is thus dependent on the current spot price of silver. For instance, if silver trades at $25 per ounce, a calculation based on weight and purity determines the metal value.
The significance of these particular coins stems from a historical shift. Prior to 1965, dimes, quarters, and half-dollars contained this high silver composition. The Coinage Act of 1965 eliminated silver from dimes and quarters, replacing it with a clad metal composition. As a result, coins minted before this change became inherently valuable due to their silver content. This silver content provides a tangible asset, offering a hedge against inflation and currency fluctuations, which is why it is often sought after.