I just got a .38 S & W Special from my sister. It has the .38 S& W Special ctg on the side of the barrel, the serial number is 565XXX on the butt and the cylinder. Inside the grip is the written number 1919CY. On top of the barrel is Smith & Wesson, Springfield Mass USA, and the patent date is Sept 14, 1909. If someone could help me approximate when this revolver was built, I would appreciate it.