I'm pretty new to revolvers, and am loving getting to know these great firearms. I'm trying to do some research on a .38 that my grandfather had. I called the S&W Customer support and was told this is a 1952 Pre-model 38. I know that the "pre" models are often modern names for guns that were called by another name "back in the day." If anyone can help me out with any further information on this revolver it would be greatly appreciated. It's a 5 shot, round grips, 2.5 in. barrel, nickel finish (or was...it's pretty worse for the wear). Thanks so much!