Thanks for the welcome!
So your response got me to thinking that maybe I had written the number down incorrectly before I put it away, so I got it out and checked. Well, I had written the number down correctly, stamped across the bottom of the butt is clearly
4D659XX.
However, I noticed something else, I looked to the Yoke for confirmation of the serial number and while there is no serial number on the yoke (just
Mod.12-3) there
is what appears to be a serial number on the swing-out arm. The number on the swing-out arm is
different than the number that appears on the butt of the pistol!
On the swing-out arm it is stamped
A7986XX. The last 5 digits,
986XX, are also stamped on the handle under the grips on the left side of the pistol. So that would lead me to believe that those are the correct serial number. Which raises the question, what is the number that is stamped onto the bottom of the butt of the pistol?
Interesting to say the least! Maybe at some point it was re-manufactured by S&W??
Anyway, here is a photo of the pistol...
/rjp