Originally Posted by Bubba2014
...I have one that was stamped 10-6, and then over stamped 13-1.
You too? You're the first other person I've seen post that they had one like mine!
Here are a couple of pictures with the marking's (sort of) "enhanced" to show the overstamping....
Pretty cool to know there are some others out there. I've always wondered how many were overstamped.
Mine is SN # D7705XX. What is yours?