Did you see what year the panel doors' method of routing electrical leads to the rear lamp changed from metal-to-metal contacts (door-to-body) to a spring-like conduit through-which the leads/wires were run to the stop/brake/marker lamp?
I cannot find those parts in the MP&AC.
Interesting question Tim. I have the spring-like conduit on my '53. When Jim Carter saw it, he took a photograph, hadn't seen them before.
