The provided context from Greysheet and USA Coin Book indicates that they are resources for coin valuation, but the excerpts do not contain specific pricing data. Therefore, a comprehensive answer must be based on general numismatic principles.
The value of a 50-cent coin, or half-dollar, is highly dependent on several key factors, most notably its year of mintage, its metallic composition, its condition, and its rarity. A modern half-dollar found in circulation is typically worth only its face value of 50 cents. These coins, minted from 1971 to the present, are composed of a copper-nickel clad and contain no precious metals.
However, the value increases significantly for older coins due to their silver content. Half-dollars minted in 1964 and earlier are composed of 90% silver. Their base value is therefore tied to the current market price of silver, making them worth substantially more than 50 cents. This intrinsic metallic worth is often referred to as its "melt value." Similarly, Kennedy half-dollars minted between 1965 and 1970 contain 40% silver and also carry a value above their face value, though less than their 90% silver counterparts.
Beyond intrinsic metal value, the coin's date, mint mark, and condition (or grade) are critical for determining its numismatic or collector value. A rare date, a low mintage number, or a coin in pristine, uncirculated condition can be worth hundreds or even thousands of dollars to a collector. For example, an early Flowing Hair or Bust half-dollar from the 18th or early 19th century will command a high premium. To ascertain the precise value of a specific 50-cent coin, one must identify these characteristics and consult a detailed price guide, such as those offered by the sources provided.
