Castle Hill House, 12 Castle Hill, Windsor, SL4 1PD
To facilitate clients in Southern Counties and Greater London. Official DVLA documents and number plates may be hand delivered or collected here (by appointment only).
BL 1 was first issued to Berkshire C.C in 1904 whilst H 1 to Middx C.C and P 1 to Surrey C.C in the same year. Other combinations issued to the area include JB,MO,PA,PB & PC .