You must have a very early 1930 there?
Pluck
I would venture to guess, that the body numbers were stamped by the guys who assembled it, at the time of assembly. Before it went for paint.
I doubt that the body numbers would have been stamped on the assembly line for several reasons. One being, that the body assembly area would be set up for backing the area to be stamped, these stamped numbers are usually clearly stamped, not just stamped on the fly.
Darryl in Fairbanks
I just found the body stamp on my 1930 fordor. It says CHI 36. I know the CHI means Chicago but what does the 36 mean? 36th car?
I'm guessing yes because it has a center dome lamp and no rear arm rests. Why do you ask?