Bartholomew, Post Office Postcode Map : Great Britain & N. Ireland /
Great Britain.Post Office.
John Bartholomew and Son
Edinburgh : John Bartholomew & Son ; London : Post Office,
[1974-
Base maps: Bartholomew half-inch maps.
Includes rev. eds. of some sheets.
For graphic index see: Key map of Great Britain and Northern Ireland for Bartholomew, Post Office Postcode Maps.