One I thought of was NOUVEAU CASINO - Vichy, but the older monogrammed metal jetons (1900-1903) I see include a "V" in a rather straight-forward "CN" that is not at all fancy as most monograms we know... so I passed on that.

The next "CN" that caught my eye is on a full color zerox of a stock certificate M-A sent me in 1992... from "SOCIETE FERMIERE des CASINO de NICE" that has a bright red seal between the complete name "CN" with actually spelling the complete name on the rim, but the big "CN" right in the middle. I then looked on another certificate from with the bright red "CN" on it along with numbered stamps also having the bright red "CN" on them.

I can't go to the wine cellar today where I keep by crates of Nice plaques stored so I looked at some of "M-A's smaller jetons and there is a BIG "CN" on the obverse with nothing else on it that is very close to your MOP monogram... But I would check with Liege to be 100% certain -- but I think that is it...

CONGRATULATIONS...!!!!