- Governor mechanism on display at the Smithsonian museum.
- Governor mechanism on display at the Smithsonian museum.
- Governor mechanism patent.
- Prime Mover Control patent history project.
- The Chief
- Vintage machine shop manufacturing history project.
- Woodward... At the Heart of the System Since 1870.
- A Woodward UG25 seies governor inside.
- A Woodward UG25 seies governor inside.
- A Woodward UG25 seies governor inside.
- A Woodward UG25 seies governor for diesel engines.
- A Woodward UG25 seies governor for diesel engines.
- A Woodward UG25 seies governor for diesel engines.
- Woodward UG25 Actuator unit.
- Vintage machine shop manufacturing history project.