The International Harvester Co. was primarily known for the production of harvesting equipment. They began experimenting with tractors around 1905. These tractors were huge, powerful and although they were useful for large areas, they did not work well for the small acreage farmer. Their first attempt at a smaller tractor was the Mogul 8-16 and was a big hit. International Harvester continued to refine their small tractor line with several follow-on models. The famous letter series tractors, including the A, B, H and M began production in 1939. IH produced many tractors during their reign and were ranked as one of the largest manufacturers of farm tractors. In 1984 IH was purchased by Tenneco and merged with the Case Corporation.
General Rule of thumb: Use the six point (parasol style) until the end of World War II. We have old photos of the F-20 up to the Super H that show farmers using the six point umbrella. All metal parts are finished with a special baked epoxy covered with a baked aluminum enamel to provide resistance to rust.
From WWII on, we generally recommend the square units. Both the curved hanger and bent shaft units were produced and used by many tractor manufacturers. Whether you have a Farmall M or International 706 these guidelines will serve you well. Both umbrellas feature yellow dichromate zinc plated tubular steel frame provides a corrosion resistant, durable finish. No painted parts.
Recently we have had many requests for the 40-inch 3 Bow Buggy style sunshade. The sturdy design features easy installation on tractors using home made, fender style or axle mounted brackets. Heavy gauge steel components withstand rugged field use and strong winds.