- VERTICAL SHAFT WATER WHEEL DRIVEN GENERATOR HISTORY.
- EAST VIEW SHOWING WALLS AND ROOF INSTALLED, TAILRACE EXCAVATION NEARING COMPLETION, c. 1918. - Dam No. 5 Hydroelectric Plant, On Potomac River, Hedgesville, Berkeley County, WV HAER WVA,2-HEDVI.V,1-26.tif
- Stevens Point Journal history, circa 2006.
- WHAT DOES BEER TASTE LIKE? 4.
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- The men who helped build the Niagara power history.
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- Hamilton Standard propeller engine governor.
- Rockford, Illinois railroad history.
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- A ROLLS ROYCE COMPANY VIPER FUEL CONTROL.
- Madison, Wisconsin postcard history.
- FORD MOTOR COMPANY HISTORY
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