Dodge Red Line Dog Dish Hub Caps
They appear to be stainless to me. Aluminum ones usually have a lighter silver look and show stains or "oxidizing" more than stainless ones do.
FYI, the stainless caps were only used in 1969 and are a 1-year only cap. 1970-up were all made of aluminum....they make cheap china reproductions bit only in aluminum.....so if you are looking for the correct cap, these are getting tough to find and look like a decent set to restore :glasses7: