A London Underground signalling cabin for the Tube has been designated as an item of national historic interest.
London Underground’s Circle and Hammersmith & City line signalling cabin at Edgware Road was picked out as important.
The network was originally built in 1926 and operated by the Metropolitan Railway – the world’s first underground railway and the predecessor to LU. The cabin is still in use.
Its mechanical “K-style” lever frame operates the interlocking of signals and points at the complex junction used by the Circle and Hammersmith & City lines.
A signalling operator controls this intricate system, with its many brass levers and interlockings, so that trains can leave on time