Home / HISTORICAL WATER POWER ENGINEERING. / A few Water Wheel Governor and Turbine Water Wheel Manufacturers from the U.S.A. / THE JAMES LEFFEL & COMPANY HISTORY PROJECT. / The James Leffel & Company catalogue covers. 35
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- Amos Woodward letter to the James Leffel & Company, circa 1887.
- Application of a Woodward Standard Size 3 Turbine Water Wheel Governor.
- A James Leffel & Company letter, circa 1870.
- A James Leffel & Company letter to Woodward, circa 1919.
- A James Leffel & Company letter to Woodward, circa 1937.