1970 S through 2014 S Kennedy Half Dollar Mint Proof 10 August 2023August 10, 2023adminkennedydollar, half, kennedy, mint, proof This Listing is for 44 Proof Coins. 2014 S Kennedy Half Dollar Proofs. Included in this Listing is the 1970 S Kennedy Proof Silver Coinage. San Francisco Uncirculated Proof Coin Collection.