I have an M1917 Army DA revolver I would like to know more about. It was my fathers and is pretty beat up. All the part numbers match (5424) and the Colt serial # is 250778. The Army # is 95883, and it has an S20 stamp on the upper frame, the Colt stamp is light and the grips are not original, possibly mother of pearl and chipped. I'm not sure if I should have is refinished or not. My father was a retired Army Drill Sergeant who served in WWII and Korea. I don't think he carried this weapon while serving. most of the finish is is gone, as he cleaned his weapons frequently. Could anyone give me some history on this pistol? Manufacture date? Was it ever re-tooled? Thanks!