Wels is in upper Austria: http://en.wikipedia.org/wiki/Wels .
I'm not familar with the maker but I would venture a guess that the stamp of the overlapping "JE" on the tubes of the hammerless is his. The stock also appears to wear the same "JE" on the hammerless example. He may have contributed a large effort toward the finishing of the hammerless from sourced components.







The hammergun is quite interesting in that the tubes wear the preliminary German mark, appear to have been finished by Lucian Clement of Liege and then proofed in Ferlach in 1914, with 2 data strings on the water table. The metal butt plate usually points to an earlier period that WWI.



I'll say you really put forth an image capturing effort.

Kind Regards,

Raimey
rse