The provided context from the coin valuation websites does not contain specific pricing data for 50-cent pieces. Therefore, a general explanation of their value must be drawn from established numismatic principles.
The value of a United States 50-cent piece, or half dollar, is determined by several factors, including its year of mintage, metallic composition, rarity, and physical condition. A definitive value cannot be assigned without assessing these attributes for a specific coin.
Most modern Kennedy half dollars, those minted from 1971 to the present, are composed of a copper-nickel clad alloy. If these coins have been in circulation, they are generally worth only their face value of 50 cents. Uncirculated examples or special issues intended for collectors may carry a small premium.
The value increases significantly for coins containing silver. Kennedy half dollars minted between 1965 and 1970 are composed of 40% silver, and their base value is tied to the current market price of silver bullion, making them worth considerably more than face value.
Half dollars minted in 1964 and earlier are composed of 90% silver. This includes the 1964 Kennedy half dollar, the Franklin half dollar series (1948-1963), and the Walking Liberty half dollar series (1916-1947). The intrinsic value of these coins is based on their silver content, which fluctuates with the daily spot price of the metal. Furthermore, coins from these series that are in high-grade condition or represent a rare date and mint mark combination can command a significant numismatic premium, with values ranging from tens to thousands of dollars for exceptional specimens.
