- A vintage 1970's Woodward PG-PL series steam turbine governor.
- A Woodward PG-PL series steam turbine governor.
- A Woodward PG-PL series steam turbine governor.
- A Woodward PG-PL series steam turbine governor.
- A Woodward EG series engine governor.
- A Woodward EG series engine governor.
- A Woodward EG series engine governor.
- A Woodward EG series engine governor.
- A Woodward EG series engine governor.
- A Woodward EG series engine governor.
- A Woodward EG series engine governor.
- Woodward and Marquette governors in the Woodward museum.
- Vintage Woodward and Marquette governors.
- A Lucas Company bulletin from the 1940's.
- A Lucas Company bulletin from the 1940's.