Only a small number of these revolving rifles were reportedly manufactured between 1840 to the early 1850s based on similar designs as the Springfield Arms Co.'s revolving handguns. This particular example is the automatically revolving version with a brass top strap/breech frame. Fewer than 25 of this variation are estimated to have been manufactured, and this is certainly one of the finest examples. Like the Warner revolvers, production was limited thanks to Samuel Colt receiving an extension of his revolver patent. It has a browned, part-round, part-octagon barrel with a blade front sight on a triangular base and a casehardened loading lever. A notch rear sight is fitted on the brass top strap. The blued cylinder has etched scroll and classical martial patterns and is the same as the Wesson & Leavitt revolver designs. The browned action has a detachable side lock with some scroll engraving and the "WARNER'S PATENT/JAN 1851." marking. "13/..." is marked on the inside of the lock and on the frame under the lock. The left side of the frame has patriotic design with an American flag, colors, and Columbia's shield. The stock has a very nicely shaped oval cheekrest and a casehardened rifle buttplate.