Coins › 1964 P.C. Set Image 1 of 3 Image 2 of 3 Image 3 of 3 1964 P.C. Set $32.00 Add To Cart Added! 1964 United States Proof Coin Set1st and only year the Kennedy was 90% Silver 1964 United States Proof Coin Set1st and only year the Kennedy was 90% Silver