- A vintage steam engine with a large flyball governor for control.
- Woodward PGE 300 series governor.
- Woodward PGE 300 series governor.
- Woodward PGE 300 series governor.
- Woodward PGE 300 series governor.
- Woodward PGE 300 series governor.
- Woodward PGE 300 series governor.
- Woodward PGE governor.
- Woodward PGE 300 series governor.
- Woodward PGE 300 series governor test stand data.
- Woodward PGE 300 series governor.
- EGB 500 5
- EGB 500 6
- Woodward EGB 500 series governor.
- Woodward PGE 500 series governor.