- MECHANICAL DESIGN OF HYDRO ELECTRIC POWER PLANTS.
- GRUBER WAGON WORKS PA CA 2
- H1836 5
- KERN COMPANY'S HYDROELETRIC POWER PLANT IN CALIFORNIA .
- Kern County Number 1 Hydro-electric Power Station History.
- Irving Governor gate setting dial.
- 15
- COOLIDGE DAM AZ
- Oconto Falls Wis 1917 001
- FAIRMOUNT WATERWORKS PA
- GRUBER WAGON WORKS PA CA 5
- Georgetown Steam Plant Seattle WA
- NORRIS COTTON MILLS 1939
- Providing a stable influence with WGC digital controls 003
- SHOP ORDER H1878 1938 008 001