I purchased an old wood poker chip box at the Brimfield Fleamarkets this past weekend. These roulette chips were in it. The hot-stamped chips are heavy. Could they contain lead weights? I'm also wondering; are these generic roulette chips or can they be attributed to a specific casino? All are if anyone is interested. I'm looking for chips, dice, ashtrays, & swizzlesticks from the Golden Gate Casino in LV.

Thanks for looking.