Only an estimated 7,000 of these Model 1861 Navy revolvers were manufactured before production abruptly switched to the New Model series due to potential issues with the "Old Model" cylinder pins sliding loose in combat. This example has not been fitted with a filister screw. The U.S. Navy is estimated to have received less than a thousand of this model and the Army received most of the remaining revolvers. This example has the standard barrel marking, German silver cone front sight, frame groove rear sight, matching serial numbers and smooth grips. There is a "CGC" cartouche on the left panel and some small inspection marks.