- Barns Drills, circa 1922.
- Emerson Brantingham Company, circa 1919.
- A Boeing Company 502 series gas turbine with a Woodward control.
- A Boeing Company 502 series gas turbine with a Woodward control.
- A Boeing Company T50 series gas turbine with a Woodward control.
- A Boeing Company T50 series gas turbine with a Woodward control.
- A General Electric Company T700 series jet engine with Woodward controls.
- A General Electric Company T700 series jet engine with Woodward controls.
- A MECCA Company gas turbine engine.
- A Rolls-Royce Aircraft Company small gas turbine engine.
- A small gas turbine engine.
- A Solar Company small gas turbine.
- A Woodward fuel control on a Boeing 502 series jet engine.
- An Airesearch Manufacturing Company gas turbine engine.
- Barber-Colman Company ad from 1922.