Source. The countryside between the wars 1918 -1940 page 39

This photograph taken at a machinery demonstration held at Hathern shows the difficulty of adjusting the self-lift trailed tractor plough in operation. The Fordson tractor a model N showing the tapering

Toolboxes of the Cockshutt models of 1930-31 but it has unusual non-standard rear wheels. The three-furrow plough with disc coulters is a Cockshutt, probably a no. 4 or no. 6 tractor plough. Since 1931 the English agent sof this Canadian firm. R. A. Lister of Dursley. Gloucestershire had publicised the plough by offering farmers free demonstrations in the field.