I would guess it was made in Suhl by Imman. Meffert between 1910 & 1914, although it could be a bit later but I would think the round to have been normalized by WWI. I don't think the pre-rifling bore diameter to be 9mm but rather 8,9mm and the 8 was worked off as were some portions of other marks. I do not see a Nitro stamp for the solid projectile tube but do for the scattergun tubes. What's the serial number range? Any marks near the forend hanger and also could you pleasure us with an image of the sideframe reinforcement?
Kind Regards,
Raimey
rse
