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 904 Bovey Map BO20
SX811783
SRS diagram P129
S 906 Moretonhampstead Map BN22
SX756857
SRS diagram W22/10 D125 (1895)
  Princetown Map BJ20
SX587735
SRS diagram W25/23
Prices are shown here.