[David_Hayward (RIP)]

I have now found a list of abbreviations for 1950s RAOC Depots:

1st Vehicle Group RAOC HQ Ashchurch in Gloucestershire:
12th B Vehicle Depot Ashchurch [ASC]
13th A Vehicle Depot Ludgershall [LUD] in Wiltshire.
2nd Vehicle Group RAOC HQ Feltham in Middlesex:
21st B Vehicle Depot Feltham [FTM] [near where I lived 1955-65]
22nd B Vehicle Group Laleham [LHM] in Middlesex.
3rd Vehicle Group HQ Church Broughton in Derbyshire:
31st B Vehicle Depot Church Broughton [CBR]
33rd B Vehicle Depot Derby [DBY]
6th Vehicle Group HQ Georgetown in Renfrewshire:
61st B Vehicle Depot Georgetown [GEO]
62nd B Vehicle Depot Eglington [EGL] in Ayrshire.
7th Vehicle Group HQ Castle Donnington in Leicestershire:
72nd B Vehicle Depot Market Harborough [MKH] in Leicestershire.
75th B Vehicle Depot Turweston [TWN] in Buckinghamshire.

Also Bicester [BIC] in Oxfordshire which was a Base Ordnance Depot [BOD] until 1956 when it became a Central Ordnance Depot [COD].