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
S3150 Cemmes Road Map BO77
SH820044
SRS diagram not available
S3153 Dovey Junction Map BL76
SN697980
SRS diagram L121 (1959)
S3154 Glandovey Map BL76
SN695970
SRS diagram D289
S3219 Llwyngwril Map BJ79
SH589097
SRS diagram not available
S3151 Machynlleth East Map BN77
SH748016
SRS diagram D265
S3152 Machynlleth West Map BN77
SH744013
SRS diagram D265
S3215 Towyn Map BJ77
SH584005
SRS diagram D556
Prices are shown here.