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 308 Brinkworth Map CU47
SU011843
SRS diagram X66
S 351 Cricklade Map CW49
SU097934
SRS diagram D88
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
S 330 Minety and Ashton Keynes Map CV49
SU034906
SRS diagram P213
S 329 Purton Map CW48
SU094884
SRS diagram P213
  Studley Map CW47
SU090820
SRS diagram P179
S 306 Wootton Bassett East Map CW47
SU070818
SRS diagram P179
S 307 Wootton Bassett West Map CW47
SU063819
SRS diagram L35
  Wootton Bassett Incline Map CU46
SU032813
SRS diagram S928 (old box)
Prices are shown here.