- RIVER MILL DAM POWER HOUSE GOVERNOR.
- PORTLAND GENERAL ELECTRIC COMPANY PHOTO.
- PELTON WATER WHEEL COMPANY HISTORY.
- PELTON WATER WHEEL COMPANY HISTORY.
- HOLYOKE TURBINE TESTING REPORT, CIRCA 1880.
- HOLYOKE TURBINE TESTING REPORT, CIRCA 1880.
- HOLYOKE TURBINE TESTING REPORT, CIRCA 1880.
- HARPER'S FERRY MANUFACTURING REPORT,CIRCA 1870.
- Cool name plates to purchase.
- Company nameplate example.
- Another Curtiss propeller governor for a vintage aircraft engine.
- Another Curtiss propeller governor for a vintage aircraft engine.
- A vintage Curtiss propeller engine governor.
- A vintage Curtiss propeller engine governor.
- A vintage Curtiss propeller engine governor.