LONDON UNDERGROUND tube map plan. Central line extensions u/c HARRY BECK #1 1947

London Transport - Diagram of lines No. 1 1947 [146.214G. 250,000 (2R). Title of map:'London Transport - Diagram of lines No. 1 1947 [146.214G. 250,000 (2R)'. DATE PRINTED: #1 1947. The image below shows an enlarged cross section from the centre of the map to show the level of printed detail. ].

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