Square Turn Farm tractors by year
The Square Turn tractor was a unique front-wheel drive tractor manufactured in Nebraska from 1917 to 1921. The tractor was designed by A.J. Colwell and Albert Kenney, who sold the rights to the Albough-Dover company in 1916. Production ran through 1921.
| Model | Power | Years |
| 18-35 | 38 hp[B] | 1917 - 1921 |
[B]: Engine power estimated from belt horsepower. See individual tractor data listing for power details.