- A vintage machine shop manufacturing history project.
- A vintage machine shop manufacturing history project.
- How do farm tractor engines governor the fuel?
- COTTA TRANSMISION ROCKFORD, ILLINOIS, CIRCA 1919.
- EMERSON-BRANTINGHAM COMPANY
- Tractor and Gas Engine Review.
- Tractor and Gas Engine Review.
- Tractor and Gas Engine Review.
- The American Thresherman for Farm Power Users.
- Tractor and Gas Engine Review.
- Tractor and Gas Engine Review.
- The Clilton Tractor Journal.
- The American Thresherman for Farm Power Users.
- The American Thresherman for Farm Power Users.
- A vintage Tractor and Gas Engine history project.