Manufactured for the U.S. military circa 1876-77 with a total production of approximately 5,934. The revolver is marked with the two line address/patent dates on the left side of the ejector housing flanked by elongated Maltese crosses. The right side of the ejector housing is marked "+SCHOFIELD'S PAT. APR. 22D 1873+". The butt is marked "U.S." along with the serial number "6338". The rear cylinder face is stamped with the matching serial number and Ordnance sub-inspector's "E" and "P", which are also marked on the bottom flat of the ejector housing. Each side of the frame is marked with three period "B"s in a pattern, and "108" is stamped into the top of the back strap. The grips are smooth walnut with the Ordnance inspector's script initials cartouche "DAL" under the date "1877" on the left side and "CW" on the right side. The matching serial number is stamped on the inside of the right panel and three "B"s are stamped into the top of each panel. The significance of the "B" markings is unknown. Many Schofield revolvers were issued to the 4th Cavalry which saw service in the Geronimo Campaign, the famous 9th and 10th U.S. Cavalry comprised of the "Buffalo Soldiers" stationed in the American Southwest. People such as the James Brothers, Cole Younger, U.S. Marshall Bill Tilghman and chief scout for Custer "Lonesome Charley" Reynolds were known to carry a Schofield revolver.