This Model 1911A1 Semi-Automatic pistol was manufactured by the Singer Manufacturing Company in Elizabeth, New Jersey, as part of the 500-gun educational order with the Ordnance Department in 1941. Serial numbered 800,000-800500, the 500 Education Order Singer Model 1911A1 pistols were issued to the U.S. Army Air Corps. Singer manufactured all of the pistol components with the exception of the stocks. The brown, checkered stocks were made by the Keys Fiber Company and were a distinctive design with no reinforcing rings around the screw holes and no interior reinforcing ribs or mold marks. The Singer M1911A1 pistols had a distinctive, very attractive polished Du-Lite finish. This pistol has the blued Du-Lite finish on the frame, slide, mainspring housing, grip safety, safety lock, slide stop, trigger and barrel bushing. The left side of the slide is roll-stamped: "S. MFG. CO./ELIZABETH,N.J.U.S.A." in two lines. The right side of the frame is roll-stamped: "UNITED STATES PROPERTY/NoS800379" behind the slide stop hole and "M 1911 A1 U.S. ARMY" ahead of it. The "JKC" final inspection mark of Colonel John K. Clement, Commander of the New York Ordnance District, is stamped on the left side of the frame immediately below the slide-stop cut-out. "P" proof marks are stamped on the left side of the frame above the magazine release button and on the top of the slide ahead of the rear sight. The pistol has a wide-spur short hammer with bordered knurling on the spur, Singer mainspring housing with fine knurling, checkered safety lock and slide stop and short trigger with milled face. All of these pieces have the original blue finish. The pistol has a blued replacement barrel marked "HS" (High Standard) on the right side of the lug a replacement recoil spring guide and a blued replacement magazine marked "C-S" on the floorplate. Documents with the pistol indicate that it was the property of Technical Sergeant Marion Ross, U.S. Army Air Corps. T.Sgt. Ross awarded the Silver Star, Bronze Star and Air Medal w/Oak Leaf Cluster for gallantry in action during WWII.