The Lanz D4506 Bauern Bulldog is a standard-tread tractor produced by Lanz from 1936 to 1942 in Mannheim, Germany. Designed for the small-scale farmer, it features a 1-cylinder liquid-cooled diesel engine producing 14.7 hp. It has a 6-speed gear transmission with 6 forward and 2 reverse gears, two-wheel drive, and an open operator station. The tractor weighs 2646 lbs and has a wheelbase of 66.1 inches. It is equipped with 4.50-16 front tires and 6.50-32 rear tires, and a rear PTO type of 540 rpm.