The 2019 S U. Mint Silver Proof Set includes 10 coins with a fineness of 0.999, featuring a mix of denominations and struck in proof quality by the San Francisco Mint. The set also includes a 1C coin with a reverse proof finish. Fremont commemorative penny minted at West Point. Each coin comes with a Certificate of Authenticity from the U. Mint, making this a valuable and collectible set for any coin enthusiast.