Map; Pocket District Railway and London United Tramways map - right half, designed by Harold Oakley, 1910 Map; Pocket Underground map, published and printed by Partington, 1910 Map; Underground Map Of Central London, pocket underground map, November 1927 Poster map; Central area stations, unknown, 1935 Poster; Underground map of London, unknown, 1921 Poster; Visitor's London, by Peter Roberson, 1950 Poster; No need to ask a p'liceman, by John Hassall, 1908