Thanks! I didn't think to solder them. I think you are right, they could be brass. I was polishing one of the reflectors and it appeared to be brass colored.
I bought a 1931 Model A Ford PU with these headlight on it. The body was pieced together from a whole bunch of different stuff for "Yard Art". I would like to find replacement rings for these head lights because the old ones are pretty busted up. Problem is I can find any thing like them. The...