Approximately 23,000 manufactured in the late 1850s to early 1860s, with the U.S. government purchasing most of these Starr Army revolvers for use in the Civil War. The frame has the New York address on the left side and the 1856 patent date on the right side. Most of the components have single letter inspector marks. Matching serial number "7515" on the barrel lug, cylinder, hammer well, trigger, both grip straps, and hammer. The revolver is fitted with a one piece walnut grip numbered to the gun on top. Boxed script "BH" (Benjamin Hannis) cartouche on both sides of the grip.