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- The Mechanical News, an illustrated journal of. v23 no 9. Circa 1893.
- The Mechanical News, an illustrated journal of. v23 no 9. Circa 1893.
- 1893 advertisement for the James Leffel & Company.
- The Mechanical News magazine history.
- Edward P. Allis history, circa 1893.
- Edward P. Allis history, circa 1893(Allis-Chalmers Manufacturing Company).
- The Mechanical News an illustrated Journal. Volume 23, number 9.
- WE LOVE MECHANICAL CONTRAPTIONS.
- Brad's biggest and baddest jet engine governors in the collection.
- A slice of the oldwoodward.com governor collection in 2019.
- A slice of the oldwoodward.com governor collection in 2019.
- HISTORY OF PAPER MAKING IN AMERICA.
- At the Heart of the System Since 1870.
- WOODWARD GOVERNORS REGULATE THE WORLD FOR 150 YEARS.
- THE MECHANICAL NEWS ADVERTISEMENTS FOR 1893.