~~~ by not continuing with this type of edge, af least for an American-style plastic chip which, would not only have been a non-tapered, useless edge... but, a welcomed traditional rounded square edge that could have been weighted as well.

Though this type is known in Central American and South American casinos in bicolor face (manufacturer unknown by me), I have never seen a French-style jeton such as this from Playboy or anywhere in the UK, for that matter.