- Vintage airplane propeller governor data,circa 1938.
- H1836 8
- HOOVER DAM 8
- MAN diesel engine
- SHOP ORDER H1878 1938 007
- SN 2761 size D
- EARLIEST KNOWN MAP IN 1856 OF KILBOUN CITY, WISCONSIN.
- 7
- CABOT HYDRO STATION TURNER FALLS MA
- PMC NOV 1986 005 001
- PMC NOV 1986 007
- SHOP ORDER No 3140 1917 001
- Woodward Governor oil pressure gateshaft governors
- DUNDEE HYDRAULIC COMPANY
- Lombard Governor 3