Inside/On Grip numbering/marking?
 

Cross posted this on Jan C. Still's sitea couple days ago. I know some members here are not on there. Looking for ideas/answers etc.
The numbers 11, on the inside/on grip well. You don't notice it until the mag is removed. I for a long time missed the marking. It is on the P08 in my Avatar, First Issue. The marking does not match the serial number or grip strap markings. To me it doesn't look like something by DWM, but not sure? Any ideas?
Thanks!

Lugers were marked as they went along in the process, by machinists on the line and by occasional inspectors, to keep track of what had been done at various points in their creation. Personal, individual marks that varied in design and location. I think it is likely that your "11" is one of these. We shall see how accurate this opinion is, according to further posts by the more experienced collectors. But I'm pretty sure this mark will neither increase nor reduce your gun's value.