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On 5th March 2013, the Network Rail website contained a page entitled "Britain's signalling heritage" which included a link to an Excel spreadsheet listing all of the remaining signal boxes on the NR network as well as those on preserved railways. At the time, the URL for the webpages was:
http://www.networkrail.co.uk/community/interest-groups/signalling-heritage/
However, this link is no longer valid and a search for the document's title via the Network Rail website in October 2020 yielded no results.
A re-ordered extract from the full spreadsheet (in pdf format), showing the entries for the SCRCA signal boxes (sorted in order of their rail-location), is attached (see below).
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