In 1933, the C&SLR and the rest of the Underground Group was taken into public ownership.

Sir Edgar Speyer resigns as Chairman of the Underground Group following attacks in the press regarding his Germany origins.

The first chairman and vice-chairman were Lord Ashfield and Frank Pick, who had held similar positions with the Underground Group.

The LPTB continued to develop the highest traditions of corporate identity, design and commercial advertising that had been put in place by the Underground Group.

The Central London Railway was absorbed into the Underground Group on 1 January 1913.

Back at the Underground Group, Stanley returned to his role as managing director and also became its chairman, replacing Lord George Hamilton.

In 1928, he moved to the Underground Group where he worked as assistant to its Managing Director Frank Pick.

The posters were commissioned by London Transport (then the Underground Group) starting in 1908, with displays of as many as 40 posters a year.

At the time it was claimed to be the largest power station ever built, and it eventually powered most of the railways and tramways in the Underground Group.

Frank Pick - manager in transport sector including Underground Group and London Passenger Transport Board.