- An International Harvester Company advertisement from 1918.
- WATERLOO BOY ONE MAN TRACTOR.
- The Practical Tractor with Built-in Service.
- The Huber Light Four Tractor.
- SQUARE TURN FARM TRACTOR.
- AVERY COMPANY TRACTOR HISTORY.
- THE GRAY TRACTOR COMPANY.
- BORING TRACTOR COMPANY, ROCKFORD, ILLINOIS. U.S.A.
- The GRAY TRACTOR with the WIDE DRIVE DRUM.
- EAGLE FARM TRACTORS.
- THE RUSSEL GAS TRACTOR MADE IN FOUR SIZES.
- CASE FARM TRACTORS and Grand Detour Plows.
- McCORMICK-DEERING TRACTORS.
- McCORMICK-DEERING Toy Farm Equipment.
- McCORMICK-DEERING TRACTORS.