when was the last silver kennedy half dollar minted

[SanVincent]

Based on general numismatic knowledge, as the provided search results lack sufficient detail, the answer to when the last silver Kennedy half dollar was minted requires some clarification. The U.S. Mint has produced Kennedy half dollars with varying silver content at different times, primarily distinguishing between coins for circulation and coins for collectors.

The last Kennedy half dollar intended for general circulation that contained silver was minted in 1970. These coins, along with those produced from 1965 to 1969, were composed of a 40% silver-clad composition. It is important to note that the very first Kennedy half dollars, minted in 1964, were composed of 90% silver. Therefore, 1964 marks the last year for the 90% silver circulating version, and 1970 marks the final year for any silver in circulating versions.

However, the United States Mint has continued to produce silver Kennedy half dollars for collectors long after 1970. Beginning in 1992, the Mint began issuing special annual proof sets that included a Kennedy half dollar struck in 90% silver. More recently, these collector versions have been struck in 99.9% fine silver. These silver coins are not intended for general circulation but are minted for the numismatic market and are still produced in the present day.