Hello, I'm an expert in numismatics, the study and collection of coins. When it comes to the value of a half dollar coin from the United States, it can vary greatly depending on several factors including the year of minting, the condition of the coin, its rarity, and whether it's a silver or a copper-nickel clad coin.

For a half dollar coin minted between 1776 and 1976, the value can range from a few dollars for more common dates and conditions to thousands for rare dates in high grades. The 1776 half dollar is a very rare and valuable coin, if authentic, and would be worth a significant amount. However, it's important to note that the United States did not mint half dollars in 1776; the first half dollar was minted in 1794. If you're referring to a coin from the early years of U.S. coinage, such as a 1794 half dollar, that could be worth tens of thousands of dollars in high grade.

Coins from the 20th century, especially those made of silver, can also be valuable. For example, a 1916 Standing Liberty quarter in high grade can be worth several hundred dollars, and certain dates of silver half dollars from the 1940s to 1960s can also be worth more than their face value.

To get an accurate valuation, it's best to have the coin appraised by a professional coin dealer or numismatist. They can take into account the specific details of your coin and provide a more precise value.

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DenominationCoin TypeDatesAverage CirculatedKennedy Half Dollars Silver (Common date)1964$7.00-$15.00Kennedy Half Dollars Silver Clad (No rare dates)1965-1969$3.00-$5.00Kennedy Half Dollars Bicentennial (Dated 1776-1976) (Common date)1975-1976Face ValueKennedy Half Dollars Clad1971-PresentFace Value9 more rowsread more >>