The provided context from Greysheet and APMEX contains website navigation information but does not include specific values for John F. Kennedy half dollars. Based on general numismatic knowledge, the value of these coins varies significantly depending on their year of issue, mint mark, and condition.
The most critical factor in determining a Kennedy half dollar's base value is its metal composition. Coins from 1964 are highly sought after because they are composed of 90% silver. Their worth is primarily tied to the current spot price of silver, making them significantly more valuable than their 50-cent face value.
From 1965 to 1970, the composition was changed to a 40% silver clad. While these coins are still worth more than face value due to their silver content, they are less valuable than the 1964 issues. Their value also fluctuates with the price of silver.
From 1971 to the present, Kennedy half dollars intended for circulation have been minted with a copper-nickel clad composition, containing no silver. Most of these coins, if they show signs of wear from circulation, are worth only their face value of 50 cents. However, uncirculated examples, special issues, or coins with rare errors can be worth more to collectors. The 1776-1976 bicentennial half dollars are also very common and typically only worth face value unless they are the 40% silver versions issued in special collector sets. For a precise valuation of a specific coin, consulting a professional coin dealer or a current price guide is recommended.
