In May 1927, traffic was able to drive past the front of the National Gallery in Trafalgar Square. The number 29 bus is headed towards Palmers Green and the bus in front’s destination is Waltham Cross. The Waltham Cross bus is advertising a P. G. Wodehouse play called ‘Good Morning Bill’, which was on at the Duke of York’s Theatre. This area was pedestrianised many years later. Image: Photographer unknown