page_title: Liverpool Street signal box
hierarchical_section_title: Liverpool Street signal box
caption_attribution_description: Former signal box on the subsurface lines at Liverpool Street Underground station
context_page_description: The Liverpool Street signal box is a Grade II listed disused signal box at Liverpool Street tube station in London.
  It was opened for operation in 1875 for an extension of the Metropolitan Railway. It was converted to an interlocking machine room in the 1950s. In 2013 it became the third signal box on the London Underground network to be listed.
context_section_description: The Liverpool Street signal box is a Grade II listed disused signal box at Liverpool Street tube station in London.
  It was opened for operation in 1875 for an extension of the Metropolitan Railway. It was converted to an interlocking machine room in the 1950s. In 2013 it became the third signal box on the London Underground network to be listed.
caption: Liverpool Street signal box (2007)
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