The photos and everything else on my website i do on myself, the pics are not the best - but i am working on it. Its hard to get good pics without shades , overlight and so on. I am an Toolmaker/Mechanic and not an computer/photo expert, so some times it is real hard for me...

Berlin SW 48 is known as Friedrichstrasse/Kreuzberg.
Same adress as Georg Knaak, Max Meffert took over Knaak, in 1907 he had the adress :

"Deutsche waffenfabrik Georg Knaak Inh. Max Meffert"
( German Weaponfactory Berlin Georg Knaak - Holder of the company : Max Meffert )

In the 1908/9 catalog of Imm.Meffert Suhl was an red notice " I am not related in any way with Max Meffert from Berlin"

I think Max Meffert used his family name to push his shop, poorly it is hard to find out more.

The Mauser system of this rifle have not the usual small inspection ( like z,o,u and so on ) marks of military rifles underneath the system, so i think it was leftover in the white or it is an system that was bought directly by Mauser for use in the civilian market.

Also the triggerguard have the small safety bolt holes , but they where closed by an pin.