Little-Known Tractors

10 little-known tractors that might have been contenders for success.

The Klumb tractor was manufactured by three different companies starting in 1913
The Klumb tractor was manufactured by three different companies starting in 1913. This 1920 advertisement shows the Klumb Model F 16-32 shortly before its last parent company, Dubuque (Iowa) Tractor & Truck Co. went out of business.