Approximately 20,000 Second Model Maynard carbines were manufactured between 1864-1865, with this example marked with an "1865" date on the lower tang as typically seen on sporting rifles; although the sporting rifles were manufactured at the same time as the standard Civil War contract carbines and this was likely a late delivered example of a Second Model carbine on contract utilizing an 1865 frame. Some were delivered late in the war and were issued and used by 6th, 9th, and 11th Indiana Cavalry and the 10th and 11th East Tennessee Union Cavalry. Pinched blade front sight, three leaf rear sight, "M" single letter inspection initial stamped on the left barrel flat at the breech, and two boxed script inspection cartouches stamped on the left of the stock wrist behind the lightly carved word "Mass".