Numerous John Deere 4020 tractors will be on display during the Half Century of Progress to mark the 60th anniversary of the tractor that was in production for more than a decade.

Usually the eye popping auction sale prices on John Deere 4020 tractors are on 1972 or 1971 models. But not always. Saturday (October 21, 2017) on a farm auction in Mt. Washington, KY, the 1964 ...