The 2009 Silver Proof Set by the U.S. Mint is an uncirculated collection of silver coins in original government packaging. This set includes coins struck in proof quality at the San Francisco Mint, with each coin certified by the U.S. Mint. The set also comes with a Certificate of Authenticity (COA) confirming the authenticity and provenance of the coins. This product is a valuable addition to any coin collection, especially for those interested in United States coins.