The 747 tractor was designed by Wilbur Hensler[3] and built by Ron Harmon and the employees of his Northern Manufacturing Company,[1][4] at a cost of $300,000.
[4] It was made for the Rossi Brothers, Elmer and Melvin, cotton farmers of Bakersfield[1] or Old River, California.
[1] In 1997, after a period of disuse, it was purchased by Robert and Randy Williams,[5] of Big Sandy, Montana, within 60 miles (97 km) of where it was built.
It was used on the Williams Brothers' farm in Chouteau County to pull an 80-foot (24 m) cultivator, covering 1.3 acres (0.53 ha) per minute[5] at a speed up to 8 miles per hour (13 km/h).
[5] After its work on the farm, it was displayed at the Heartland Acres Agribition Center in Independence, Iowa.