Jeep-of-All-Trades -- Harrowing... Doubling for a tractor, this jeep is pulling a spring tooth harrow, or drag, on the farm. For the purpose of demonstration the harrow is being used on unploughed land. It would work even easier on ploughed ground; for the jeep has power to all four wheels and the tore design gives plenty of traction. September 16, 1945. (Photo by C.J. Nichols, International News Photos).