- LEFFEL QUALITY...
- LOMBARD HYDRAULIC TURBINE WATER WHEEL GOVERNOR HISTORY.
- Model of the Adams Station hydroelectric turbine system.
- NIAGARA FALLS AREA MAP.
- PAGE 4.
- S. Morgan Smith Company's factory photo of a Pelton type water wheel, generator and governor system
- Vintage machine shop manufacturing history project.
- WATER POWER EAST TO THE NIAGARA RIVER.
- Woodward factory photo of the Compensating type Water Wheel Governor.
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