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
S 978 Lydford Map BG22
SX500827
SRS diagram W25/17
  Princetown Map BJ20
SX587735
SRS diagram W25/23
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