- A vintage engine with a Woodward SG governor application.
- Ingersoll Milling Machine Company, Rockford, Ill.
- W. F. & John Barnes Company
- A Woodward SG type governor application.
- Ingersoll Milling Machine Company.
- The Fairbanks-Morse Company's Woodward IC governor application.
- A Billet Sigma fuel injection pump.
- Woodward Governor Company advertisement history.
- A Scheid diesel injection fuel pump.
- A Woodward SG type governor application.
- Woodward Governor Company advertisement history.
- Marquette Hydraulic Governor History.
- A vintage Woodward hydraulic gateshaft type water wheel governor.
- A Deutz Diesel injection fuel pump and governor unit.
- An EMD diesel engine with a Marquette governor application.