I picked up several of these things at the convention. Each one has one of the 12 Chinese Zodiac animals on one side and what I think is the complete 12 Western Zodiac symbol set (Saggitarius, Leo, etc.) on the other. Dennis Finn tells me these are indeed silver strikes that were won out of a strike machine, but he doesn't know where. I remember being outbid for one of these on ebay once, but I didn't save the listing info. The Chinese Zodiac animals appear to be the same as the ones from Teller House and some other casinos I've seen. About half have the copyright symbol on one side, but no mint mark.

Does anybody know anything more about these -- what casino, when, etc.?