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- ELECTRICAL WORLD ADVERTISEMENT FROM 1914.
- Woodward Oil Pressure Waterwheel Governor first manufactured in 1912 -xx
- WOODWARD S NEW TYPE OF OIL PRESSURE WATER WHEEL GOVERNOR GATESHAFT TYPE CIRCA 1917-xx
- Woodward factory photo of their new relay valve oil pressure governor.
- A Woodward Relay Valve Oil Pressure Turbine Water Wheel Governor Application.
- Woodward Oil Pressure Relay Valve Governor Manual.
- Woodward Oil Pressure Relay Valve Governor Manual, circa 1912.
- ELMER WOODWARD'S FIRST HYDRAULIC TURBINE WATER WHEEL GOVERNOR PATENT.
- Brown Bridge Power house governor gate setting dial.
- Irving Governor Close up now in a museum.
- The Woodward Irving Governor in the museum.
- Irving Governor gate setting dial.
- A Irving hydro governor now saved in a museum at the original power plant location.
- The Irving hydro plant governor now in a museum on the original building site that was taken down.
- Casting for the governor gate setting dial found in the scrap bin by the hand full.