- Froedtert Malt Company
- Rahr Malting Company
- Central Waters Brewery history.
- Central Waters Brewery history.
- The Stevens Point Brewery's Ginseng Beer.
- The Stevens Point Brewery's Ginseng Beer.
- History on the combined-cycle gas turbine powered plant. 3.
- History on the combined-cycle gas turbine powered plant. 2.
- History on the combined-cycle gas turbine powered plant.
- Lombard Water Wheel Governor History.
- Lombard Water Wheel Governor History.
- Governors for Water Wheels.
- Circa 1988.
- Circa 1973.