A pre-1965 United States quarter dollar contained 90% of the precious metal. The remaining 10% consisted of copper, adding to the coin’s durability. As an example, a typical coin of this composition has approximately 0.18084 troy ounces of the valuable material.
The inclusion of the metal in circulating currency was a standard practice that ended due to rising commodity prices. These coins hold intrinsic worth beyond their face value, making them attractive to collectors and investors. Their historical significance is tied to a monetary system no longer in use.