- The First 75 Years of the Woodward Governor Company's History.
- A vintage Caterpillar Company advertisement.
- The Foote Burt Drilling Machine Company
- An advertisement from 1925.
- Rockford, Illinois history, circa 1900.
- The Fairbank-Morse Company's Woodward IC governor application.
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- DE LAVAL STEAM TURBINE COMPANY
- The Gisholt Machine Company property in Madison, Wisconsin.
- Vintage machine shop manufacturing history project.
- INGERSOLL MILLING AND MANUFACTURING COMPANY HISTORY.
- Brad's vintage machine shop manufacturing project.
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- The Woodward Governor Company's Hydraulic Governors for diesel engines.