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Your search for "Signal Box" resulted in the following result(s).

	Word or Phrase:	AIR RAID PRECAUTIONS SIGNAL BOX *
	Definition:	A brick built railway signal box, usually with a reinforced correct roof, designed to minimize the effects of blast damage from aerial bombardment and thus protect the signalling equipment.

	Word or Phrase:	SIGNAL BOX *
	Definition:	A building on a railway system housing levers used to regulate trains on the tracks using signals and to change the points to enable a train to transfer from one track to another.