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 600 Badminton Map CP47
ST810813
SRS diagram P53
S 308 Brinkworth Map CU47
SU011843
SRS diagram X66
S 313 Hullavington Map CR47
ST900828
SRS diagram P53 also L238 (1937)
S 309 Little Somerford Map CT47
ST967841
SRS diagram X66 also L238 (1933)
S 312 Malmesbury Map CS48
ST932878
SRS diagram S855
  Wootton Bassett Incline Map CU46
SU032813
SRS diagram S928 (old box)
Prices are shown here.