
The provided context is insufficient to answer the question, as it contains only website titles and navigation elements rather than substantive information. Based on general numismatic knowledge, several key factors determine the value of a 1964 Kennedy half dollar.
The primary element contributing to the coin's baseline value is its metallic composition. The 1964 Kennedy half dollar was the last regular-issue United States half dollar struck for circulation containing 90% silver. Subsequent issues from 1965 to 1970 contained only 40% silver, and later circulating versions contained no silver at all. This high silver content gives every 1964 half dollar a significant intrinsic or "melt" value based on the current spot price of silver, making it worth considerably more than its fifty-cent face value, regardless of its condition.
Beyond its intrinsic bullion value, the coin's historical significance plays a role. The coin was authorized by Congress just over a month after the assassination of President John F. Kennedy in late 1963 and was first released to the public in March 1964. The immense public grief and admiration for the late president to widespread hoarding of the coin as a memento. This demand ensured that the coin did not circulate widely and that many were preserved in uncirculated condition, making it a historically important and symbolic issue.
For numismatists, the value can increase substantially based on the coin's condition, or grade, and the presence of rare varieties. While a common, circulated 1964 half dollar is typically valued for its silver content, a pristine, uncirculated example can command a significant premium. The highest values are reserved for coins professionally graded at the top of the Mint State scale. Furthermore, specific collectible varieties exist, most notably the "Accented Hair" proof version. This early die state, characterized by more pronounced hair strands above Kennedy's ear, is scarcer than the standard proof and is highly sought after by collectors, making it the most valuable variant of the 1964 issue.


