I guess it could be brass. The guy said it was copper ... I didn't inspect it that closely as it was in a glass case.
He did mention that it was discontinued (for sale by the dealers) because it was too brittle to play with. Customers kept returning them complaining about them.
When I heard that I was surprised that he said copper as that is a fairly soft metal. Brass makes a lot more sense ... as far as being potentially too brittle.
Thanks for the idea.