Home / Albums Historical Hydroelectric Power Plant Equipment Engineering. + Drawings of Turbine Water Wheel Governors. 3685
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- Vintage Hydroelectric Power Plant history.
- Vintage Hydroelectric Power Plant history.
- 1868 LEFFEL LETTERHEAD
- 1868 Leffel letter
- An 1870's paper for turbine water wheel applications.
- 1870's advertisement for Water Wheels.
- 1880 mills in the Niagara Falls factory district.
- An old mill from decades of use.