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
S1191 Falmouth Map AO08
SW817323
SRS diagram S890
S1189 Penryn Map AO09
SW779347
SRS diagram D90
Prices are shown here.