fallschirmjäger:
Nah, I've just viewed a few more than most. That 16/1 is actually a vulgar fraction and although I do not know the designations like back of hand, I'm confident that billwolfe is correct @ 0.669" for the diameter of the bore. Regarding Suhl, they did not commence a dating scheme until September 1923 while Zella-Mehlis began in the early 1900s. There is some info that suggest that the Suhl proof facility saw renovation in the early 1920s and either the Suhl proof facility or the Suhl mechanics sent their wares to the Z-M facility, but either way there was a ledger number associated w/ the Suhl proofed weapons for say 6 months.
Cheers,
Raimey
rse