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Creation date / 2019 / June
- Greenock water wheel governor drawing, circa 1847.
- Greenock water wheel governor drawing, circa 1847.
- HYDRAULIC MOTORS AND TURBINE HISTORY SERIES.
- HYDRAULIC MOTORS AND TURBINE HISTORY SERIES.
- NIAGARA FALLS AREA MAP.
- Page 26. A Paccard Hydraulic Turbine Water Wheel Governor. A Swiss made hydraulic turbine water wheel governor.
- Rockford, Illinois history, circa 1900.
- Rockford, Illinois history, circa 1900.
- The American Water Wheel Company history.
- The Brattleboro Hydro-electric power plant.
- The Wisconsin Capitol history project.
- The Wisconsin Capitol history project.
- The Wisconsin State Capitol.
- The Wisconsin State Capitol.
- The Wisconsin State Capitol.