1949 A fine original vintage LONDON TRANSPORT RAILWAYS DIAGRAM OF LINES Underground map with the design by Harry Beck. 

This Underground map designed by H C Beck shows the first use of a grid on the diagram. The logo has changes and now has the word 'Railways' printed on the bar. On the reverse of the map is an index of stations with their grid locations. The map shows the Metropolitan line extending as far as Aylesbury (the line beyond Amersham was transferred to British Rail in 1961); the District Line spur to South Acton (closed 1959); the Northern Line City section from Old Street to Finsbury Park via Essex Road (closed 1975); the Central Line continuation between Epping and Ongar (closed in 1994); The Piccadilly Line spur to Aldwych (closed 1994); The line between Baker Street and Stanmore is shown as a branch of the Bakerloo line, as it was until it became part of the Jubilee line upon its opening in 1979.

Overall size approx 23cm x 15cm with two folds, as issued. Condition is excellent.