• Reference: E.R.O. 20443. Original LMS (London Midland & Scottish Railway) internal booklet covering signalling procedures during adverse weather conditions, issued in 1938. • Title: Instructions Respecting Signalling During Fog or Falling Snow.
LONDON MIDLAND SCOTTISH RAILWAY 'INSTRUCTIONS re SIGNALLING IN FOG & SNOW' 1938
EA15 - 039 - LNER (Southern Area) - Signalling during Fog or Falling Snow 1934
L.N.E.R Arrangements For Signalling During Fog Or Falling Snow
British Railways Arrangements For Signalling During Fog And Falling Snow 1949
LMS Instructions relating to Train Signalling Regulations, Enginemen Guards 1947
BR Southern. INSTRUCTIONS TO BE OBSERVED DURING FOG or SNOW.... Nov 1949. VGC