This beautiful set contains five proof quarters in their original mint container with commemorative designs honoring:Montana
Washington
Idaho
Wyoming
Utah
These states represent the last to be honored in the 50 State Quarters® Program – a ten year program that started back in 1999 with the release of a new state quarter design every 10 weeks.
The coins in each set are proof. The mint describes the term proof as a manufacturing process in which specially-treated coin blanks are struck multiple times using specially-polished dies. Proof coins-unlike coins produced for general circulation-are extraordinarily brilliant, with sharp relief and a mirror-like background. A frosted, sculpted foreground gives these coins a special cameo effect.
The 2007 State Quarter Proof Sets also bear the “S” mint mark, denoting they were produced at the San Francisco Mint facility. Every day circulation quarters are produced in either the Denver or Philadelphia Mint facility.