Khan,
If it's marked West Germany, it was made post WW2 of course, probably in the 1950s. The year could be determined if you show us the proof marks.
Sauer & Sohn is the maker, Suhl is the city where the maker was situated (before moving to West Germany post WW2). Simson was another maker from Suhl.
It's a good solid gun but not worth buying at $1500 (IMO).

With kind regards,
Jani

Last edited by montenegrin; 11/30/13 05:17 AM.