Rail - Signalling
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Signalling & Signal Boxes Along the NER Routes Vol 2- Durham, Northumberland & Cumbria Stock Code: A6764.0£14.99
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Signalling Centres in the North East No 1 York from Early Days to Rail Operating Centre Stock Code: NER25.0£18.50
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Southern Infrastructure 1922-1934: Stations/Signalling/Trackwork Stock Code: NB811.0£14.95