Labelled central London inset map of Royal Mail postcode districts of the LONDON post town.
Indicative postcode districts shown in red, post town shown in grey.
Equirectangular projection with latitude stretching 160%, WGS84 datum.
Geographic limits:

Main 1:60,000 map:
West: 0.173W
East: 0.0594W
North: 51.552N
South: 51.481N
Derived from Ordnance Survey OS OpenData.

Postcode district boundaries within Great Britain derived from Voronoi polygons of OS Code-Point Open unit postcode median coordinates (with coastline clipping and minor adjustments to avoid spurious detached polygons).
Great Britain coastline, inland water and urban extent data derived from OS Strategi.
Richardguk