This is one of less than 600 repeating rifles manufactured by Adirondack Arms Co. based on Orvil M. Robinson's patent. Very little is known about the inventor or the manufacturer. The rifle was designed and patented by Orvil M. Robinson of Upper Jay, New York, and Winchester Repeating Arm Co. later bought is patents. It is believed A.S. Babbitt of Plattsburgh, New York, manufactured the arms and the Adirondack Firearms Company of Plattsburgh, New York, was a financial entity only and was formed to market the rifles. These rare rifles were manufactured from 1870 to 1874, and collectors have identified two different models. This example is a Model II, or Model 1872, which has a round knob at the top center of the receiver that the operator uses to pull back the bolt. The top of the bolt has a two-line patent date marking, and the top of the action has the two-line Robinson patent date/Adironadack address marking. It has a brass frame, German silver blade front sight and elevation screw adjustable rear sight. The serial number "209" is marked on the right lower side of the frame. The plain straight grip stock features a brass crescent buttplate.