Map of Royal Mail former postal counties of the United Kingdom.
This file was derived from:

 British postcode areas map.svg: 
AB postcode area map.svg: 
and all the other maps of the form "XX postcode area map.svg" by Richardguk
British_postcode_areas_map.svg: Richardguk
AB_postcode_area_map.svg, etc: Richardguk
derivative work: Dr Greg