.45 ACP. 5.5" barrel length. SN: 29457. (Mfg. Ca 1919) Blued over brushed metal finish with smooth walnut grips, a lanyard loop to the butt, and polished hammer flanks. Double action hand ejector revolver with six-shot cylinder and mounting fixed front blade and topstrap notch sights. The manufacturer markings include COLT D.A. 45 mark to the left barrel with the address on top reading COLT'S PT. F.A. MFG. CO HARTFORD. CT U.S.A./PAT'D AUG. 5.1884.JUNE 5 1900. JULY 4 1905. A weakly struck and uneven {Rampant Colt} mark is visible on the left frame. The assembly number 7557 matches on the frame, barrel, and crane. Grip panels are non-matching and numbered in pencil on the interior of both 277892. Government markings include "UNITED STATES PROPERTY" mark to the underside of the barrel, and U.S./ARMY/MODEL/1917 to the butt. The monogram GHS inspector mark of Colonel Gilbert H. Stewart has been struck into the upper left frame. There are H inspector stamps on the rear cylinder, and to the inside frame, along with a light P mark to the frame.