United States Quarter Set. This comprehensive set includes 50 circulated US 25 Cent State Quarters minted between 1999 and 2009. The set comes in a wood frame with one slot for each of the 50 states. A must-have for any coin collector. The set is a mix of P and D mint marks and includes coins from all 50 states in the United States. They are ungraded and uncertified, but all coins are in good condition. This State Quarters collection is perfect for collectors and enthusiasts alike.