This 2020 US Silver Proof Set includes 10 coins in a complete box, but does not come with a certificate of authenticity. The set contains a variety of uncirculated coins with a mixed denomination, all composed of 0.9 fineness silver and struck in proof quality at the San Francisco Mint. The coins vary in year and feature the reverse proof nickel. This set is certified by the U.S. Mint and is a great addition to any coin collection.