- Prime Mover Control blueprint drawing history.
- Blueprint drawing history saved from the trash.
- WOODWARD GATE SHAFT OIL PRESSURE GOVERNOR HISTORY.
- Woodward type 3161 governor
- Prime Mover Control blueprint drawing history.
- BLUE PRINT OF A HYDROELECTRIC DAM SITE
- John Herschel created the blueprint process in 1842.
- Blueprint drawing history saved from the trash.
- PMC blueprint history.
- Historical notes on the Woodward compensating type water wheel governor.
- ELMER WOODWARD'S NEW TYPE OF OIL PRESSURE WATER WHEEL GOVERNOR '' GATESHAFT'' TYPE.
- WOODWARD GATE SHAFT OIL PRESSURE GOVERNOR HISTORY.
- Prime Mover Control blueprint drawing history.
- Woodward Oil Pressure Relay Valve Water Wheel Governor history.
- More donated vintage blueprints of hydro turbines.