I got this 25-2 from about 1975 this weekend at a local gun show. I have already posted the smooth target grips, which I am told are S&W but not original to this gun. It looks as if this is one of those 1000-1500 pistols that came out with the barrel marked as '1950' instead of "1955'. I notice that inside of the ejector rod shroud of the barrel is a faint stamping of the serial number. It is very light and hard to read, but it is there. Is this stamping normal for a pistol from this time frame? I tried to get a picture of it here.