I can only add that the guns marked "BSW" for Berlin Suhler Waffen(fabrik) were mainly made at the original Simpson factory in Suhl after the Nazi takeover but mainly before the Jewish workers were fired and then "deported." I've seen .22 bolt repeaters including paramilitary trainers, SxS BLNE's and Merkel-looking SxS SLEs with that (by now infamous) "brand name."

(SimpsonShooter PLEASE DO correct me if that's wrong.)