Building a London Tube Station Tunnel.
Building a London Tube Station Tunnel, detail.
An underground Wonder
'These intricate tubes (near Mornington Crescent, London, N.W.) were so accurately laid that when they were joined up (after being started from each end) they fitted within a quarter of an inch. A hundred and sixty trains pass through them in an hour between North and South London.'
Original images and text from : Chatterbox (1926, Children's Annual), published by Wells Gardner, Darton & Co., London 1926. Artist unknown
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