Hanno,
I am sure this truck was at one time in Jersey, belonging to a guy named Nick. On one of our MV tours in the island, late 1980's, we were taken on a trip around the island's narrow lanes in the back of it. On dismounting, we were told it had no brakes
Attached is a picture of a late war RAF version showing canopy hoops and rails in stowed positions. Both Army and RAF had these in service.
I know of two in preservation in South Australia, one was with us on the Back To The Track convoy run from Alice Springs to Darwin, and was known as the "pommy truck".
Richard