A .38 'Model 1877 Lightning' double-action revolver by Colt, no. 74664 The barrel engraved Colt's PT. F. A. Mfg. Co. Hartford. CT. U.S.A., with blade-foresight and ejector rod, grooved top-strap, the left side of the frame stamped Pat. Sept. 19. 1871.""15"74."Jan.19."75...