The 2007 Gold Edition State Quarter Collection includes uncirculated 25-cent coins featuring designs from Montana, Wyoming, Idaho, Utah, and Washington. These State Quarters are composed of gold and were struck by the U.S. Mint as part of the Business strike type. The collection comes with a Certificate of Authenticity (COA) to verify its authenticity and is a part of the State Quarters series from 1999 to 2008.