Old, potentially rare train lamp

[BigGingerBob]

Morning all,

I found this lamp at my grandfather's house and decided that it would be good to restore it (whist keeping the patina).
Does anyone know what it is? Like what train or company would have used it?
Lamp:



P.s. I'm on my phone and the photos will be on thir side. Not sure of the remedy

[BigGingerBob]

loggo said:

Not a guards van lamp .There would be two brackets for a sidelight. And a red lens for a tail light. Looks to have been badly painted a funny colour. Any indication of the original ?

Apparently white. A colleague knows a couple of train people and they said a rear lamp.
Unsure of age though