The 2007 Denver Mint Edition State Quarter Collection includes 5 uncirculated quarters from Montana, Wyoming, Idaho, Utah, and Washington. This set is a proof-like strike type and comes with a Certificate of Authenticity. The quarters are denominated as 25 cents and were minted in Denver in 2007. The coins are part of the State Quarters series (1999-2008) and are a part of the United States Coins & Paper Money collection.