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
S1548 Aberthaw East Map DG172
ST035665
SRS diagram B22 (Aberthaw)
S1549 Aberthaw West Map DF172
ST033673
SRS diagram not available
  Cowbridge Junction Map DD177
ST000747
SRS diagram not available
S1555 Duchy & Lancaster Quarries Map CW178
SS908756
SRS diagram D496
S1550 Gileston Map DE172
ST016675
SRS diagram not available
S1553 Llandow Map CY176
SS951715
SRS diagram D495
S1552 Llantwit Major Map DB172
SS970689
SRS diagram D162
S1554 Southerndown Road Map CW177
SS916748
SRS diagram D495
S1551 St. Athan Map DC172
SS988685
SRS diagram D162
Prices are shown here.