RISC OSList of G.W. SignalboxesRISC OS
http://www.svrsig.org/gwmap/GWMap.htm

Search for a particular signal box

If you know where the box is, then and if you know the name of the box (or part of the name) then search for matching text in the signalbox name .
note: use a fullstop to match any character (for example 'b.n' will match Barn, bin and stubborn).

The Western Region renumbered box diagrams in an 'S-series' and you can search for
diagrams between S and S , or select a batch of numbers corresponding to a Signal & Telegraph region .

The Signalling Record Society publish box diagrams - search for diagrams
between and then .

Enter a search and click a button.