LMS Broughton Astley Rating Railway Plan Diagram Track Map
Signal Instruction 36CD/57SED (1983): Bromley South, Chislehurst and Swanley; VG
LMS track plan Soho - Wolverhampton 1940
1971 Leicester Knighton Moira Branston Railway Track Plan Map
Signal Instruction 39 C.D. Coulsdon North, Redhill, Crawley and Preston Park
Kimbridge Signal Box Railway Plan Diagram Signalling Record Society
The Institution of Railway Signal Engineers, Circuits for Colour Lighting Signal
Royston Shelford - Shepreth Junction Signal & Permanent way Alteration BR E 1983
Signal Instruction No. 26 S.E.D North Kent East Junction, Charlton and Maze Hill
Signal Instruction No. 8 S.W.D. Guildford Yard, South, London Road and Shalford
c1966 Liverpool Area London Midland Reg Railway Track Map
1984 Bristol Westbury Re-Signalling Booklets Signals Western Region Signalling