The 1964 Half Dollar US is a popular coin among collectors. It was minted in 1964, the same year that the Kennedy half dollar was first issued. The coin features the profile of President John F. Kennedy on the obverse, and the reverse features the Presidential Seal. The coin is composed of 90% silver and 10% copper, and it has a diameter of 30.6 mm.The 1964 Half Dollar US is a valuable coin, and its value depends on its condition. Coins that are in uncirculated condition can be worth up to $50, while coins that are in circulated condition can be worth up to $20. The coin can also be worth more if it is a proof or a special edition.To identify a 1964 Half Dollar US, look for the date and the mint mark. The date should be 1964, and the mint mark should be either a D (for Denver) or an S (for San Francisco). The coin should also have the profile of President Kennedy on the obverse, and the Presidential Seal on the reverse.The 1964 Half Dollar US is a popular coin among collectors, and it can be a valuable addition to any collection. Knowing the history and value of the coin, as well as how to identify it, can help you make an informed decision when buying or selling this coin.