As several have stated, it has the characteristics of a Lindner sourced sporting weapon with the frame, forend "bump"(possibly Triebel), wide forend hanger & the engraving, which might be confirmed by Henrik Frühauf, is that of Hugo Kolb. I would say Suhl sourced and J.P. Lower added very little to the effort. Would really like to see the catalogue.

Kind Regards,

Raimey
rse