Need help on a P-08 decision

[Daniel76]

I have a 1921 Weimar era luger with similar stamps on the grip strap and the back of the frame. I believe the 8.8 on the back frame corresponds to the two '8's on the grip strap. 8th company, 8th weapon. It is put on the back strap so that as they are accounting for them in an armory rack, they don't have to take each one of them out and individually check the serial numbers.

Here is my 1921 stamps in the same places.