- Vintage Hydroelectric Power Plant history.
- 47
- NIAGARA FALLS AREA MAP.
- Vintage Hydroelectric Power Plant history.
- 2
- 46
- A Woodward Main Engine Control for the CFM56-3 jet engine.
- 185
- An application of a Woodward compensating type water wheel governor.
- A drawing of a Woodward water wheel governor application from the James Leffel Company.
- 186
- 1
- Rockford, Illinois history, circa 1900.
- At the Head of the Class for Prime Mover Control Systems.
- Vintage advertisements are interesting!