ALLIS-CHALMERS MODEL U

The "U" was the first Allis-Chalmers tractor to be painted "Poppy Orange"  rather than dark green. The "U"  was also the first production model farm tractor to offer pneumatic tires. Pneumatics were more comfortable and let the tractor be driven at higher speed on the road but most important they required about half the power in the field. It wasn't long before all manufacturers were offering them on their tractors.

WALLIS 12-20

In 1912, Henry Wallis started the Wallis Tractor Company in Cleveland, Ohio but soon moved it to Racine, Wisconsin where it was merged with the J.I. Case Plow Works. Wallis tractors were known for their fuel efficiency and U-shaped steel frame. In 1928, Massey-Harris bought the J.I. Case Plow Works Company then sold the Case name back to the J.I. Case Threshing Machine Company. In 1929, the 12-20 was introduced and sold as the Wallis 12-20, Massey-Harris 12-20, and the Certified 12-20. The 12-20 provided the base on which the later Massey-Harris Pacemaker and Challenger tractors were built.

FARMALL REGULAR

The Farmall was the first all-purpose tractor made by International Harvester. Produced from 1924 to 1932, it could pull plows and cultivate crops. On many farms it would be a tricycle row crop Farmall that replaced the horse and set the style of tractors for years to come.With the introduction of the Farmall 20 the original Farmall came to be referred to as the "Regular". 

INTERNATIONAL HARVESTER TITAN 10-20

IH produced the Titan for the Deering man. The engine was started on gasoline and once warm was switched over to kerosene. Water injection was used to prevent pre-ignition.

FORDSON MODEL F

The Henry Ford and Son Company, which was wholly owned by Henry Ford, built the Fordson tractor. It would not merge with the Ford Motor Company until all non-family stockholders of that firm had been bought out in 1919.

The Fordson changed the configuration of tractors and began a price war. With over 750,000 sold in the U.S. from 1917 to 1928 it was the Fordson more than any other tractor that introduced farmers to power equipment. It is even credited with having saved the people of Great Britain from food shortages in both world wars.