Design classic: London Underground

Apparently it's 100 years ago this week since London Underground introduced the 'roundel' icon, and in so doing created arguably the first true brand logo. The whole point of the roundel was to reassure commuters that, wherever they saw the symbol, the quality of service would be the same, and it would connect to all the rest of the Tube system. Although it changed slightly from its initial inception, the redesign by Edward Johnston in 1913 was pretty much the last significant change to it.

So what better way to celebrate this than a photo of Clapham South in 1926, before the hordes of frisbee-throwers and Foxtons estate agents moved down, and turned it into a suburb of Surrey.