One of the dispoals on this list says 'Bowhouse' and is listed as 'Scot Co'.....
Here it is...[Bowhouse Munitions Factory was an Air Ministry facility located about two miles southeast of Hurlford, Ayrshire. The factory was built in 1939, primarily for the manufacture of incendiary bombs, and continued in this role until 1945.
During the 1950s it was used as a bomb disposal site, and later as a depot for redundant vehicles and stores.
During the 1960s, the site was used to host Government surplus sales...]...Ian
Nick Thomas on the British Jeeps FB group refers to "Theatre Allocation lists" for the post-war numbers. Apparently YJ was West Africa, for instance. Presumably YE was allocated to Home Forces.