Erval Jackson build four-wheel drive tractors in Edgeley, North Dakota in the early 1970s. Jackson also manufactured swathers and swather transports. After production stopped, Jackson continued operating a repair shop until 1982.
Model | Power | Years |
4-53 | 160 hp | 1968 - 1970 |
4-44 | 210 hp | 1969 - 1970 |
534 | 265 hp | 1969 - 1972 |