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Work on the Simplon Tunnel Upper power house. Iron bridge across the diveria for the flume. Brandt hydraulic rock drills. Compressed-air tunnel locomotive. Gallery. Ventilator house.
Source: Steve Kirch, collector, and creator of a great website about SCIENTIFIC AMERICAN in the past
Restoration by: magscanner
- Created on
- Saturday 27 February 2010
- Posted on
- Saturday 27 February 2010
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- 1372