Info needed: Trailer socket Humber one ton

[Robert Sexton]

All very enlightening Richard,thanks.It looks like different methods of connecting the lighting system of the trailer to the towing vehicle was in fact used. I would guess that my trailer would have come to Australia with the Humber's in the early 1950's, it does not the side lights at the front that the later models had.I intend installing the Warner socket for appearances and will wire in parallel a modern seven wire lead for practical towing purposes.
It looks like the Sankey chassis/mudguards/towing ring remained unchanged for many years. I don't believe that my cargo trailer ever had the drop down legs,or at least there is not any evidence of them ever having been attached.
Even though the trailer is quite heavy it is reasonably easy to roll around on the jockey wheel as the center of gravity is only just forward of the axle
Robert