Suhl = city in German/Saxon state of Thuringen/Thuringia.
after wwll it was part of East Germany.

Hitler confiscated Simson company due to Jewish ownership.
Ohters will chime in with history of the company during/after that time.You can find details by doing search pf past posts on Simson guns.

check wikipedia for Thuringia history.

check the date codes for when it was made. decent guns regardless and even better if pre-wwll. As to what to call it, eeither is correct.