This 2000-S US Mint Proof Set features 10 coins. Also included is the 50 State Commemorative Gold Quarters. The coins are uncirculated and come with certification from the U.S. Mint. The set is a great addition to any coin collection and a perfect way to celebrate the turn of the millennium. They were minted in San Francisco, California, and are ungraded. The set is not certified and does not come with a KM number. It is a wonderful opportunity to own a piece of American history.