LONDON UNDERGROUND tube map plan. South Acton. Aylesbury. Ongar. HARRY BECK 1957

Title of map:'London Transport - Diagram of lines - 1957 [1156/2672D/1,000,000]'. London Transport - Diagram of lines - 1957 [1156/2672D/1,000,000]. 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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