- THE PHOENIX MANUFACTURING COMPANY CATALOGUE.
- Brad's vintage machine shop manufacturing history project.
- American Society of Civil Engineers. Transactions paper No. 1503.
- THE AMERICAN MIXED-FLOW TURBINE WATER WHEEL HISTORY.
- Brad's old Woodward CSSA propeller engine governor on the train layout.
- Page 1238.
- Civil engineers and inventors of the original turbine water wheel types.
- Page 1242.
- The Granddaddy of the turbine water wheel.
- The Granddaddy of the turbine water wheel.
- Page 1355.
- Page 1356. Last page.
- Large gas turbine jet engine and fuel control history project.
- Page 2. Circa 1896.
- Page 3.