Karel Krnka
Marked: C. G. Haenel,Suhl System G.Roth . D.R. Patent No. 116.061&118.G02
The self-loading rifle is Krnka-Roth M.1899 cal. 8mm, designed by Karel Krnka when he was working for Georg Roth Arms manufactory in Vienna.
Made under license by Haenel of Suhl, it was offered in old Austro-Hungarian gun catalogues as a hunting carbine but few were sold so it is rarely found today.
It’s a predecessor of the pistol Roth-Steyr, model 1907.
In appendix, here are of the extracts of the German patents in question, n° 116061 and 118602, going back to 1899.