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 241 Brize Norton and Bampton Map DB53
SP305060
SRS diagram B110
S 242 Carterton Map DB53
SP286049
SRS diagram S802
  Faringdon Map DB50
SU288950
SRS diagram not available
S 240 Witney Station Map DD53
SP356088
SRS diagram W51/19
Prices are shown here.