SBR - "Go-Go Tractor"

This deceptively simple design by Hudson (Leeds) was the merger of a Fordson Major tractor engine and transmission mounted onto a rail chassis.
Works No. 36863 of 1929 originally worked at a brickworks, was initially preserved at another site before arriving at Statfold. [dates ?]
[I saw the very similar loco wksno 33924 at Apedale in 2015]