You know, I have viewed the initials >>CH<< on a Lindner(this one has the Lindner bump on the forend as noted by Jtpumb), Sauer, or similar early Anson & Deeley Body Action. I would say it to be the Actioner, Frame Filer or maybe even Schloßmachermeister??

I would hazard a guess something like Caspar Hoffmann, or another Carl H., Caspar H. Z-M mechanic with actioner by his name? I'll have to study a bit.

Serbus,

Raimey
rse