Finaly, I got my 1917 Erfurt Luger's pictures.

[George Anderson]

Hu, you have an excellent and rare marked Luger. I will see if your man is listed in any of my Rangliste. As a Offizier Stellvertreter is something equivalent to a temporary officer or battlefield appointment your guy may not appear in the Ranglisten unless he was later commissioned as a full officer rank.