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- Vintage Hydroelectric Power Plant history.
- 1870's advertisement for Water Wheels.
- 1880 mills in the Niagara Falls factory district.
- 1894 Hydraulic Governor by Lombard
- 1895 hydro plant
- 1895 mill drawing
- 1895
- 1896
- 1897
- 1900 s Tulloch s Mill
- 1904 POTOMACK RIVER
- 1904 at the Mill District at Niagara Falls
- 1904 view of a Reploge relay water wheel governor
- 1925 view of the Prairie du Sac power plant
- 1926 PELTON GOVERNOR AND TURBINE 1