- Vintage machine shop manufacturing history project.
- Vintage machine shop manufacturing history project.
- Vintage machie shop manufacturing history saved.
- Vintage machie shop manufacturing history saved.
- Vintage governor oil pump gears for the history books.
- TVA TECHNICAL REPORTS.
- TVA TECHNICAL REPORTS.
- These massive governor oil pump gears were scapped because of small cracks found from NDT testing after over 50 years of operation.
- The year 2020... into the future of Prime Mover Controls.
- The Woodward Company manufactured hundreds of these pumps over the decades.
- THE TVA POWER SYSTEM.
- The Rock River Valley history of Northern Illinois.
- THE ROCK RIVER VALLEY HISTORY IN NORTHERN ILLINOIS.
- THE ROCK RIVER VALLEY HISTORY IN NORTHERN ILLINOIS.
- The Rock River Country of Northern Illinois.