Aultman & Taylor produced its 15-30 farm tractor model From 1919 Until 1923 in United states. Talking dimensions and weight, this model weighs 8,240 lbs or 3737 kg has , 176 inches [447 cm] of length and 104 inches [264 cm] of height while maintaining a wheelbase of 98.5 inches [250 cm]. This tractor can fit ag tires of 36x5 (steel) front and 36x5 (steel) back . This Aultman & Taylor 15-30 is powerd by a gasoline engine it has 510.5 ci or 8.4 L 4 cylinders the fuel tank capacity is 16 gal or 60.6 L. This machine has 4x2 2WD wheel drive system,1 forward and reverse transmission system.