I have a S&W five screw .45 ACP that I'm trying to get a date of manufacture on. The S/N is 17354X and Pat dates of Dec 1,1901- Feb 8, 1908 and Sept 14,1909. there is a P in the recess of the crane and under the barrel is something that looks like IA605A6EA, what ever that means. There is no model number anywhere else that I see. It has a hole in the frame for a lanyard but no lanyard. Original wood grips came with it but has after market grips. TIA.