That law mainly affected U.S. dimes and quarters. Half-dollar coins were still made with 40% silver from 1965 to 1970, but after 1970 no more circulating U.S. coins were made with silver.

The half dollar is one of the most popular U.S. coins to collect. Though many aren’t worth more than their face value, older half dollars often hold value due to the silver in their composition ...

The Kennedy half dollar was first minted in 1964 in the wake of the assassination of President John F. Kennedy — the coin’s obvious namesake. It was a commemorative issuance made in Kennedy ...