50 State Quarters to form what is known as a "mule". Only sixteen of these specimens, produced on dollar planchets, escaped from the mint. A 2005 Minnesota double die quarter, as well as a 2005 Minnesota quarter with extra trees (another die error), have both triggered numismatic interest. An unusual die break on some 2005 Kansas quarters created a humpback bison. Relatively more common are Kansas quarters bearing the motto "IN GOD WE RUST." The United States produces proof coinage in circulating base metal and, since 1992, in separately sold sets with the dimes, quarters, and half-dollars in silver. For the silver issues,
Arcola Slave Quarters Arcola Slave Quarters The Arcola Slave Quarters were built "circa" 1800 on the grounds of the Lewis plantation at Arcola in Loudoun County, Virginia. The plantation house was replaced by a different house in the 1930s on the original foundation, but the slave quarters remain. The stone structure is a double-pen building built into an embankment downhill from the main house. The western end is older, with two connecting rooms and a cellar, accessible through a hole in the floor. The eastern end consists of two rooms, connected to the original wing by a breezeway. Each block has a central