З Casino Chip History and Usage
Casino chips are standardized tokens used in gambling establishments to represent monetary value during games. Made from clay, ceramic, or composite materials, they feature unique designs, colors, and weights to distinguish between casinos and denominations. These chips facilitate smooth transactions, reduce counterfeiting, and serve as collectible items with historical and cultural significance.

They didn’t call them “chips” back then. Just tokens. Plain, round, heavy things made of clay, bone, or later, baked clay with a stamped mark. I found one in a Parisian auction last year – a 1763 specimen, still bearing the stamp of a Marseille gambling den.