Love the bowl and ad! I also have a cream colored one. I was never sure if it was issued that way or just lived in a smoker's house. At first glance it looks completely uniform, but on close inspection there are a couple white spots in the creases.
I also have a metal Campanella (center). It might have been cast after the fact because the face detail is off, but maybe it's a proto-type. I talked to a dealer at the national last year that said he had seen others (used to own a Mantle), but he wasn't sure where they were from either. Does anyone know anything about these?