~~~ monograms on their bone, pearl and composition chips without anything else other than a denomination while, defining everything on their metallics. Thus one of the reasons we see the same monogram on chips that were used in more than one casino (for a fact).

I am not saying that your monogram is from a French casino... only that French casinos clubs or private operations and casino operators had chips without anything than a monogram and denomination and not always with a monetary unit; Ff or Cc.