2019 S SILVER PROOF SET 10 COINS NGC PF70 FIRST RELEAES 4968475-026. 2019 S KENNEDY SILVER NGC FIRST DAY OF ISSUE... The item "2019 S SILVER PROOF SET 10 COINS NGC PF70 FIRST RELEAES 4968475-026" is in sale since Saturday, August 17, 2019. This item is in the category "Coins & Paper Money\Coins\ US\Quarters\America the Beautiful 2010-Now".The seller is "coinsaddict2020" and is located in Miami, Florida. This item can be shipped to United States.