worth very little ($1 or $2 each), except for the three-legged one, which isn't so rare. Clay composition antique poker chips. Most collectors don't make a big distinction over the color.
I was the first to report the three-legged one and had it coded, many years ago, I recall. I thought it was an old symbol from a Mediterranean country (?!?). I could sell some, maybe $5 each plus postage.