While it may not enhance your journey as you rumble along underground from one postcode to the ... W and SW. Click here to see a larger version of the map.

Renaming either the SE or SW district as simply S was considered, to keep this compass point on the map, but this never happened. There hasn't been a S postcode district in London since.

The UK's country-wide postcode system, introduced to speed up mail deliveries ... The capital was divided into 10 separate postal districts - N, S, E, W, NE, NW, SE, SW, EC and WC. The S and NE codes ...