Collectible coins, such as the Kennedy Half Dollar, are a significant category in numismatics and can appreciate in value over time. The Kennedy Half Dollar, introduced in 1964, honors President John F. Kennedy and is widely collected, particularly the series minted from 1964 to 1970. The 1974 Kennedy Half Dollar, which was produced in both Philadelphia and Denver mints, often attracts collectors interested in mint marks and variations in design. Specifically, the Denver-minted coins feature the 'D' mint mark and are sought after for their historical significance and collectible value.

Item Denomination Series Year Mint
1974-D (Denver) Kennedy Half Dollars 50¢ (Fifty Cents) Kennedy Half Dollars 1974 Denver