- Wisconsin Hydroelectric Power History.
- Wisconsin Hydroelectric Power History.
- Wisconsin Hydroelectric Power History.
- Why working at Woodward made history...
- TURBINE WATER WHEEL JAMES LEFFEL AND COMPANY SPRINGFIELD, OHIO, U.S.A.
- Top view of the Fairbanks scale model number 2.
- The Volcan Street Hydo Plant.
- The Volcan Street Hydo Plant.
- The Volcan Street Hydo Plant.
- The Volcan Street Hydo Plant showing the original James Leffel turbine water wheel.
- The Volcan Street Hydo Plant showing the original James Leffel turbine water wheel.
- The Volcan Street Hydo Plant showing the original James Leffel turbine water wheel.
- The Volcan Street Hydo Plant showing the original James Leffel turbine water wheel.
- The Volcan Street Hydo Plant showing the James Leffel turbine water wheel.
- The Volcan Street Hydo Plant Property Location.