Germain Sommeiller's (1815-1871) compressed air rock drill used in the Mont Cenis and St Gothard railway tunnels. Sommeiller engineer of Mont Cenis tu

---

Germain Sommeiller's (1815-1871) compressed air rock drill used in the Mont Cenis and St Gothard railway tunnels. Sommeiller engineer of Mont Cenis tunnel. Wood engraving, Paris, 1874

---

Size: 5471px × 3194px
Photo credit: © Universal History Archive/UIG/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1815-1871, 1874, air, cenis, civil, compressed, drill, engineer, engineering, engraving, germain, gothard, machinery, mechanisation, mont, paris, physics, pneumatics, railway, rock, sommeiller, st, tunnel, tunnels, wood