Original Caption: 'Sungrade' plough working in Southern Rhodesia: Oct 1935' Description: A bullock-team-drawn 'Sungrade' reversible plough working in Southern Rhodesia. It was a simple operation to turn the discs 180 degrees, thus reversing the disc-throw of soil. The operator could then plough up and down in line rather than ploughing around the paddock. Location Rhodesia Earliest Date 1935 Latest Date 1935 Image No 017816