Scanning ALL my sample and promo chips/jetons/plaques came across this one. It is made by Abbiati in Italy.
Sometimes we come across a strange type or so like this, if you hold it against the light it is translucent and has like a kind of gold dust in it.
Nice, but as I hear from Casino bosses they are a bit fragile.
Anyway again for your viewing pleasure,
Belgium Bob R-4479