Fall of the Leaf; by Walter E Spradbery, 1933. Just as leisure travel into the areas beyond central London was promoted to increase revenue during off-peak periods, commuters were encouraged to live further out from the city in the new suburbs for commercial reasons. Posters advertising days out by Tube, bus or tram were prominently displayed at station entrances and on the vehicles themselves, reminding travellers of the natural wonders that lay in store outside of city limits.
The formal, angular style incorporating Celtic symbols deployed by architect, designer and watercolourist Charles Rennie Mackintosh (1868-1928) defined the Glasgow school, along with the Macdonald sisters and Herbert McNair. Together, they were known as The Four.