Collectible coins, such as the Kennedy Half Dollar, are often sought after by numismatists due to their historical significance, rarity, and design. The Kennedy Half Dollar, first minted in 1964, commemorates President John F. Kennedy and is available in various years and mint marks. The 1979 Kennedy Half Dollar, produced at the San Francisco Mint, is particularly notable for its limited mintage and can hold greater value among collectors. Collectible coins are evaluated for their condition, demand, and provenance, impacting their market worth.