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

The case is stamped G

one this key was withdraw from the instrument the signale line key token system was disabled preventing the signalmaen to withdraw token keys

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.