Poster; The key to London is the Central London Railway, unknown, 1909 Poster; Please stand on the right of the escalator, by Fougasse (Cyril Kenneth Bird), 1944 Poster; Brightest London is best reached by Underground, by Horace Taylor, 1924 Poster; The lure of the Underground, by Alfred Leete, 1927 Poster; It is cooler below, by Frederick Charles Herrick, 1926 Poster; Piccadilly extension now open, by Edward McKnight Kauffer, 1932 Poster; Thanks to the Underground, by Zero (Hans Schleger), 1935 Poster; Quickly away, thanks to pneumatic doors, by Laszlo Moholy-Nagy, 1937 Poster; Do you know that; a party of 8 or more adults, by Victor Galbraith, 1959 Poster; The seen; at London's service, by James Fitton, 1948 Poster; The Colne River at Uxbridge by tram, by Edward McKnight Kauffer, 1924 Poster; Say it Underground with a poster, by Christopher Greaves, 1933 Poster; Take your party by saloon coach, by Victor Hembrow, 1927 Poster; Summer outings by private bus, by Verney L Danvers, 1925 Poster; The hop gardens of Kent, by Dorothy Dix, 1922