This commemorative set features all uncirculated 50 States designs of 1999-2008, minted in silver and struck in uncirculated original luster. The coins come with an album and are certified by the U.S. Mint. The denomination of the coins is 25C and they were minted in the United States. The set includes coins with a "P" and "D" mint mark. The coins are ungraded and have not been circulated. This is a great addition to any coin collection or a perfect gift for someone who loves state quarters.