Several types of United States half dollar coins can be worth significantly more than their 50-cent face value. A coin's value is primarily determined by its rarity, historical significance, silver content, and, most importantly, its physical condition or grade.
As the provided search context suggests, even modern series like the Kennedy Half Dollar, first minted in 1964, can have valuable examples. The 1964 Kennedy half dollar is highly sought after because it was the only year the coin was struck from 90% silver for circulation. Other valuable Kennedy half dollars include those from 1965 to 1970, which contain 40% silver, as well as certain proof versions, special mint set issues, and error coins that are prized by collectors.
Beyond the Kennedy series, older half dollars often carry substantial value. The Walking Liberty Half Dollar series (1916-1947) is famous for its beautiful design and contains several key dates that are rare and valuable, especially in high-grade condition. Similarly, Franklin Half Dollars (1948-1963), made of 90% silver, can command premiums above their silver value, particularly for coins in uncirculated condition with sharp details, such as "Full Bell Lines" on the reverse.
Even earlier designs, such as the Barber Half Dollar (1892-1915) and Seated Liberty Half Dollar (1839-1891), have numerous key dates and mint marks that are scarce and highly valued by numismatists. Ultimately, a half dollar's worth is tied to its specific year, mint mark, and preservation. Coins with errors, low mintage numbers, and those in pristine, uncirculated condition will almost always fetch the highest prices on the market.
