- WATERLOO BOY ONE MAN TRACTOR.
- Waterloo Boy Gasoline Engines.
- uc1. b25902-seq 1
- The Westinghouse-Parsons Steam Turbine.
- The Westinghouse-Parsons Steam Turbine.
- THE RUSSEL GAS TRACTOR MADE IN FOUR SIZES.
- The Practical Tractor with Built-in Service.
- The International Side Delivery Rake.
- The IHC Line of Farming Equipment.
- The Huber Light Four Tractor.
- The GRAY TRACTOR with the WIDE DRIVE DRUM.
- THE GRAY TRACTOR COMPANY.
- The Governing of Steam Turbines.
- THE ENGLISH ELECTRIC COMPANY HISTORY.
- THE ENGLISH ELECTRIC COMPANY HISTORY.