- GOVERNORS
- GOVERNORS FOR HYDRAULIC TURBINES.
- Great history picture!
- Inside view of the Woodward control system unit.
- Irl C. Martin at his new desk in the new Woodward facility in Loves Park, Illinois.
- Irl C. Martin's Prime Mover Control publication(started in 1910).
- IT ALL BEGAN BACK IN 1870 WITH ONE MAN...
- Mechanical Design cover
- MECHANICAL DESIGN OF HYDRO PLANTS.
- Power situation at the Niagara Falls area.
- PRIME MOVER CONTROL ARCHIVES.
- Prime Mover Control History Painting.
- Prime mover controls history painting.
- The Carborbundum Company, Niagara Falls, NY. U.S.A.
- The Emerson Brandtingham Company, Rockford, Illinois U.S.A.