The 2023 S US Mint Annual 10 Coin Silver Proof Set is a collection of ten coins made of 0.999 silver, struck in proof quality, and issued by the United States Mint. The set includes coins of assorted denominations, all of which are uncirculated and ungraded. The coins are minted in San Francisco and come with a certificate of authenticity (COA). This set is a great addition to any coin collection and is sure to impress any coin enthusiast.