Wallis produced its 20-30 farm tractor model From 1927 Until 1932 in United states with a Open operator station cabin. Talking dimensions and weight, this model weighs 4,136 lbs or 1876 kg has , 131.5 inches [334 cm] of length and 55 inches [139 cm] of height while maintaining a wheelbase of 84 inches [213 cm]. This tractor can fit ag tires of back . This Wallis 20-30 is powerd by a gasoline engine it has 346 ci or 5.7 L 4 cylinders the fuel tank capacity is 20 gal or 75.7 L. This machine has 4x2 2WD wheel drive system,2 forward and 1 reverse transmission system.