Ted
The first name on the old tax book is Holland War Agricultural Executive Commission. Boston. Then it changes in 1949 to Lincolnshire Holland AEC (Agricultural Executive Committee), Station Road Kinton. A further change in 1951 sees it registered to Secretary of State, Home Office. Then Belfast Fire Brigade in 1969 and then Fire Authority of Northern Ireland in 1975.
It seems to have a curious career "appearing" to be used to serve tea to farm workers? Or were these just "front" organisations? I am assuming that between 1951 and 1969, it was stored in a central government like so many vehicles held in reserve.
I have had no replies from any of the organisations I contacted about GLE 54 except the LFB.