- Woodward Governor Company ad from 1925.
- Engineering News-Record History
- CATERPILLAR TRACTOR ADVERTISEMENT, CIRCA 1925.
- An advertisement from 1925.
- An advertisement from 1925.
- AiResearch R
- AiResearch U
- A JT8 type jet engine fuel control. 5.
- A JT8 type jet engine fuel control. 4.
- A JT8 type jet engine fuel control. 3.
- A JT8 type jet engine fuel control. 2.
- A JT8 type jet engine fuel control.
- A JT8 type jet engine fuel control. 7.
- A CHANDLER EVANS JET ENGINE FUEL CONTROL.
- A CHANDLER EVANS JET ENGINE FUEL CONTROL.