Caterpillar Twenty-Two.
Manufactured by the Caterpillar Tractor Co., Peoria, Illinois. The 22 uses a Caterpillar four-cylinder engine with a 4"x5" bore and stroke. With a rated speed of 1,250 rpm, the 22 produces 19 1/3 drawbar and 27 1/4 brake horsepower. Owned by Lee Dyal, Yorba Linda, Ca.

Photo courtesy of Ralph Paterson