KevinB, I think what looks like a chain is two pieces of twisted wire. I'm not certain if the wire has gold content to it or not. I don't think the scales or the straps holding them on have any cold content (coloring, plate, etc...) but I guess it's possible. There are no markings that I see to identify the metal content.
wendy177 you found out who made it, thanks! Looks like the initials KE might be Ken Edwards. Seems he may have been amongst the pioneers of the making of stoneware in Mexico along with Jorge Wilmont in the 1950's and 1960s. I will have to look around some more now that I have this info.