The inquiry pertains to the cessation of United States quarters composed of a 90% silver alloy. These coins, commonly circulated for commerce, possessed a significantly higher intrinsic metal value compared to their face value when silver prices escalated. Determining the precise time frame when this composition was discontinued is essential for numismatists and individuals interested in the historical value of circulating coinage.
The historical significance of this transition lies in the economic factors influencing the composition of coinage. The rising cost of silver prompted a change in the coin’s metallic makeup to maintain its face value and prevent melting for its silver content. Understanding the specific date of this compositional change is crucial for identifying pre-1965 silver quarters, which possess increased value due to their precious metal content. This alteration directly impacted the intrinsic worth and collectibility of United States quarters.