RA 8240A BR(M) 4 ASPECT SIGNAL BOX HANDLAMP Staffs & Tablets This is the best example

This is the best example of the classic Great Northern Railway single needle  block telegraph instrument

this plate was recovered from 47-313 upon scrapping by E

After the war

Here is a superb example of a Great Western Railway 1936 appendix to the rule book

it was at this stage that the full identity was discovered

RA 8240A BR(M) 4 ASPECT SIGNAL BOX HANDLAMP Staffs & Tablets This is the best exampleA less common BR(M) 4 aspect signal box handlamp , this handlamp has the additional yellow shades which would be issued by the signalman to a fog signalman when appointed to be positioned at the Distant signal. This lamp has the standard yellow painted top to make it distinctive from a standard red green handlamp. This item is in lovely ex railway service order with all shade in undamaged condition.