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 276 Challow Map DD49
SU353905
SRS diagram P33 (1914, 1944)
S 275 Circourt Map DE49
SU380909
SRS diagram P33
  Lockinge East Map DF49
SU454916
SRS diagram not available
S 273 Lockinge West Map DF49
SU445915
SRS diagram not available
S 274 Wantage Road Map DE49
SU412914
SRS diagram P63 (old box, 1934)
Prices are shown here.