I did inset the "X" for the last digit as an afterthought.
Originally Posted by Alpo
Did you edit the serial number? I was pretty sure there were all numbers - no X - first time I saw this post. Just curious.
I may have to invest in another S&W letter to clear up the mystery. Since these have pinned barrels, it would be easy for a smith to trade-out barrels, but don't know why they would do that.
(I already have a 4" pre-18 with S&W letter.)