Ask for an image of the marks. There's an old wives tale that Suhl rolled out some sub-par offerings post WWII & the tale may be predicated on Otto Reif's efforts & the lack of quality material up till say 1952, but I'd say from 1956 forward it should be a workhorse.

My major concern is that odd trigger / selector & if it functions or not?

Cheers,

Raimey
rse