This 1997 United States Mint Proof Set (S) includes five coins with a Certificate of Authenticity. The coins are uncirculated and struck in proof quality at the San Francisco mint. The denominations of the coins are 50c, 25c, 10c, 5c, and 1c. The year of minting is 1997. The coins are a great addition to any collection and come with the added assurance of certification.The set is perfect for collectors of US coins and comes with all the necessary information to make it a valuable addition to any collection. The coins are a great representation of the United States and its currency. This set is a must-have for anyone looking to expand their collection and is sure to impress.