There is the possibility that he, in fact, did assembly these guns, and that would account for the lack of markings.
I think the probability to be very, very low, approaching zero as I'm confident that the engraving is that of Hugo Kolb and I really don't think that John Prey Lower would have sent it back. H.A. Lindner's mother was Dorothea Kolb, wife of Georg Lindner, & I assume she was the brother of Hugo Kolb. I don't think the tap, tap, tap to be that of L. D. Nimschke, more than likely the person J.P. Lower would have sourced. I don't know how much time J.P. Lower & his wife spent in Suhl, if any, in the mid 1880s, but it is possible that he could have contributed some effort then. If you ever take the stock or buttplate off there may be some initials or markings there.
Kind Regards,
Raimey
rse
