The central question relates to identifying United States half dollar coins that contain silver as a metallic component. Specifically, it asks to differentiate between those coins and others made of base metals. This determination is based on the coin’s year of minting and, in some cases, the specific mint mark. For instance, half dollars minted in 1964 contain 90% silver, while those minted from 1965 to 1970 contain 40% silver. Coins minted after 1970 are generally composed of copper-nickel clad.
Determining the silver content of these coins is important for collectors, investors, and those interested in numismatics. Silver has intrinsic value and can appreciate over time, making these coins potentially valuable assets. Understanding the historical context of coinage also provides insight into economic shifts and government policies related to precious metals. The transition from silver coinage reflects changing economic realities and material availability during the mid-20th century.