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 968 Kingsbridge Map BN12
SX731441
SRS diagram W25/10 (c. 1950)
S 992 Yealmpton Map BJ13
SX581515
SRS diagram W26/02
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