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
  Birch Rock Siding (L.M.S.) Map BV199
SRS diagram not available
S2120 Glynhir Siding Map BV202
SN596054
SRS diagram P156
S2167 Graig Merthyr Colliery Siding Map BV199
SN597023
SRS diagram W43/22
S2166 Grovesend Colliery Loop Map BV199
SN590024
SRS diagram P51
S2116 Hendy Junction Map BU200
SN581032
SRS diagram D472
S2113 Llangennech Siding Map BS199
SN561008
SRS diagram D110
S2114 Llangennech Station Map BT199
SN564012
SRS diagram D110
S1855 Llangyfelach Map BZ199
SS638995
SRS diagram not available
S2115 Morlais Junction Map BT200
SN574024
Click here for Dog chart and mechanical locking table.
SRS diagram P51
S2121 Pantyffynnon South Map BX206
SN622107
SRS diagram P156
S2168 Pont-Lliw Map BW199
SN609010
SRS diagram not available
S2025 Pontardulais (L.M.S.) Map BV200
SN590033
SRS diagram not available
S2119 Pontardulais Junction North Map BV201
SN592047
SRS diagram W44/03
S2118 Pontardulais Junction Station Map BV201
SN588040
SRS diagram D472
Prices are shown here.