also on paper:
the Teschner-Collath action startet in the late 1850s as a needle fire gun for a paper cartridge without base after some modifications the same action lived into the 1920s suitable for big nitro cartridges

Zimmer 1873

the 1914 catalog

tesco was alsways very innovative, here a monoblog

the guns were made in five qualitys

the difference between the 3. and 4. quality was the monoblog
my damascus gun would compare with this steel barrels guns

the teschner collath and the v. dreyse double gun, the dreyse looks more early 19. century

with a "modern shotgun" , Gebr. Adamy 16 ga