Info needed: Trailer socket Humber one ton

[Richard Farrant]

Originally Posted by chrisgrove

What is the Butler convoy light - I've never heard of that? The ones I've seen have a plate, seemingly painted white, fixed under the trailer to the left of centre and \i have assumed that was the equivalent of the white painted differential form of convoy light, and would have had a lamp shining on it.

Hi Chris,
I think this is the FV number plate lamp, mounted at top of the number plate, it has a shield that can be turned to reduce the light emitted in blackout conditions. a similar lamp was fitted to the white convoy plate under the vehicle or trailer.
Looking at Robert's trailer it appears that there is a strip of metal standing proud down the right hand rear end of the body, where the tailboard shuts up, this could be the mounting point for the number plate on the early 1 ton trailers.
Richard