What this coin looks like (obverse, reverse, mint mark location, special features, etc.): The bicentennial Kennedy Half Dollar features a 1776-1976 date on the obverse and a portrait of Philadelphia Pennsylvania's Independence Hall with the words "200 YEARS OF FREEDOM" on the reverse of the coin to celebrate the 200th anniversary of the United States of America. This coin was produced in both years of 1975 through 1976 so there were no 1975 coins.
This particular version is the special 40% silver Mint Edition of the Bicentennial Half Dollar. Proof silver coins with a mirror-like surface were produced as depicted in the image above. In addition: A business strike silver uncirculated edition of this coin was also produced (does not have the mirror-like surface). An example of the uncirculated 40% silver edition bicentennial half dollar is depicted below in the example image:
Coin value chart: Typical coin prices, values and worth in USD based on grade/condition