The U.S. Mint's bicentennial commemorative quarter for Missouri; public domain image on Wikipedia.
Missouri Commemorative Quarter
The U.S. Mint's bicentennial commemorative quarter for Missouri features: the Gateway Arch (Gateway to the West) in St. Louis, Missouri (a national historic landmark); Lewis and Clark returning down the Missouri river; and the caption; "Corps of Discovery 1804-2004." Missouri became the 24th state in 1821. All State Quarters