We are pleased to offer for sale this Proof Half Dollar Coin Starter Set 25 Different Proof Kennedy Half Dollars 1971 to Date. All of these Kennedy Half Dollars are in Gem Proof condition. Each Kennedy Proof Half Dollar lot consists of 25 different San Francisco Mint Proof Kennedy dates between 1971 and Current (dates of our choice, no requests). These Kennedy Proof Half Dollar coins have been taken from original U.S. Mint Proof Sets and have nice eye appeal with no visible problems. The Kennedy Clad Proof Halves are copper-nickel clad half dollars weighing 11.34 grams with a diameter of 30.6mm. These Kennedy Half Dollars are comprised of outer layers of copper-nickel (.750 copper, .250 nickel) bonded to an inner core of pure copper. These are a great way to start a set of Proof Kennedy Half Dollars.