McCormick-Deering Farmall 'Regular' rowcrop agricultural tractor on 'narrow-vee' dual front steel wheels and steel rear wheels with spade lugs and road bands, by International Harvester Corporation Chicago, Illinois, United States of America, Serial No. QC 52616, 1926. Engine: Serial No. QC 50170, 20 hp 4-cylinder overhead valve gasoline(petrol) /kerosene. The first tractor produced specifically for rowcrop cultivation, with high axle clearance, and designed to carry a range of implements for precision row cultivation, fitted to the front, underneath, and to the rear of the tractor.