The era of the late teens was a watershed for J. I. Case, a time of enormous activity as the company moved into the growing small tractor market, with new and innovative machinery coming out of the factory on a regular basis.
Case's first major entry in the gasoline tractor sector came in 1912 with the huge 30-60. But unlike some of the old-line manufacturers making the transition from steam to gasoline or kerosene, Case quickly focused its efforts on building smaller tractors to meet the demands of a changing agricultural market.
This ad, which appeared on the back page of the March 1917 issue of The American Thresherman and Farm Power, shows the direction Case was moving with its tractor line.
At top is the smallest tractor Case built in 1917, the 9-18. Introduced in 1916, Case built 6,687 of these litte tractors until late 1918, when the 9-18B with unit construction and cross-ways four-cylinder engine was introduced.
Next is the 10-20, a three-wheeled tractor with four-cylinder power. Case built 6,679 of these between 1915 and 1918.
After that comes the 12-25, introduced in 1914 and discontinued in 1918 after a run of 3,351 units.
And finally, the 20-40. First introduced in 1912, the 20-40 stayed in production until 1919. A total of 1,757 early style and late style 20-40s were built. This ad shows the late style.
Special thanks to Dusty Ericson, 7950 E. Redfield #160, Scottsdale, AZ 85260, for supplying us with this old issue of The American Thresherman.