The 2022-S US Mint Silver Proof Set includes 10 uncirculated 25-cent silver coins struck with a proof finish. These coins are composed of 0.999 fine silver and are minted in San Francisco by the United States Mint. Each set comes with a Certificate of Authenticity (COA) and is packaged in a box for safekeeping. This collectible set is ideal for numismatists and coin enthusiasts looking to add to their collection of US coins.