Depiction of the Dreyse needle-gun showing a full gun, a cross section of the percussion mechanism, and a cross section of a cartridge. This single-shot firearm was a military breech-loading rifle, famous for being the main infantry weapon of the Prussians between 1841 and 1873.
The caption reads in the original French:
Fusil à aiguille prussien. — 1. Fusil entier. — 2. Section. — 3. Cartouche.