I hope Ralph slept well last night
. Looks like you have a Model 1905, 2.5 Change. It's in between the 2nd and 3rd. It has the old CTG stamp with the patent info on the right side and a large trademark stamp. I know some folks will say it is a Model 1902 but I don't think you can parse the changes for a round butt after 1905. Probably best to say it is a .38 M&P round butt from around 1909.