of glazed dark red bricks, were designed by Leslie Green and 140 electric lifts were imported from America from the Otis Elevator Company. A length of the Baker Street & Waterloo between Baker Street and Kennington Road (now Lambeth North) opened in March 1906, and the line reached Edgware Road the following year. It was named the 'Bakerloo' in July 1906, called an undignified "gutter title" by The Railway Magazine. The Great Northern, Piccadilly & Brompton Railway (the Piccadilly) opened from Finsbury Park to Hammersmith in December 1906, the Aldwych branch opening the following year. "Moving staircases" or escalators were first installed at Earl's Court between the District and Piccadilly line platforms, and at all deep level tube stations after 1912. The last, the Charing Cross, Euston & Hampstead (the Hampstead) opened in 1907, and ran from to Camden Town, before splitting into two branches going to Golders Green and Highgate (now Archway). London Underground To promote travel by the underground railways in London a joint marketing arrangement was agreed that included maps, joint publicity and through ticketing. UNDERGROUND signs were used outside stations in Central London. The UERL acquired London bus and tram companies in 1912 and the following year the City & South London and Central London Railway joined the company. That year the Great Northern & City was taken over by the Met. Suggestions of merger with the Underground Group were rejected by the Metropolitan, a press release of November 1912 noting its interests in areas outside London, its relationships with main line railways and its freight business. Further coordination in the form of a General Managers' Conference faltered after the Metropolitan withdrew in 1911 when the Central London Railway, without any reference to the conference, set its season ticket prices significantly lower than those on the Met's competitive routes. The UERL introduced station name boards with a red disc and a blue bar and the Met responded with station boards showing a blue bar on a red diamond. In 1913 the Bakerloo line reached Paddington, and the following year the Hampstead line was extended south of its Charing Cross terminus to an expanded interchange station (currently known as Embankment) with the Bakerloo and District lines. The Bakerloo line was extended north to Queen's Park to link up with the London & North Western Railway's new electric line from Euston to Watford Junction. The start of World