The maker looks to be Albert Scholle, Zeitz.
The construction of it is WWII era or later, due to the flap being sewn directly to the back (without the extra piece).
Albert Scholle did make P38 holsters from 1940-1943, as well as Luger holsters in 1939. This may have been done earlier though, perhaps for a police rework? Strange that the tool pouch is missing though?
Matt
