RISC OSMap of G.W. SignalboxesRISC OS
http://www.svrsig.org/gwmap/GWMap.htm
Sxxxx numberSignal Box nameView on map squareOther information including SRS diagram number
  Bramley Map DL40
SU655594
SRS diagram P194 (1924, 194)
  Burghfield Map DL43
SU693686
SRS diagram D103
  Mortimer Map DL42
SU672640
SRS diagram D225
  Stratfieldsaye Map DL41
SU656624
SRS diagram D225 (1940 also Stratfield 1917)
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