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
S2740 Astrop Siding Map DH61
SP486378
SRS diagram S849
S2738 Aynho Junction Map DH60
SP495336
SRS diagram P42
S2737 Aynho Station Map DH60
SP498324
SRS diagram W57/05
S2736 Fritwell and Somerton Map DH60
SP496289
SRS diagram D141 (1959, 1880)
S2734 Heyford Map DH59
SP482247
SRS diagram S848
S2739 King's Sutton Junction Map DH60
SP495359
SRS diagram P42
S2733 Tackley Map DH58
SP484205
SRS diagram not available
Prices are shown here.