~~~ with monograms; especially from France and Belgium where monograms have changed... even in the short term -- with a few examples being "VF" Villa des Fleurs; "CD" Casino d'Deauville; "CH" Casino Marie-Christine; "CM" Casino Municipal Menton; "JP/CJP" Jetee Prominade; "CR" Royat; "CF" Foret; "VC" Viller-sur-Mer -- or "CD" Dinant... and especially "SCI" Sporting Club Int'l just to name a few where not the same monogram used thru the years. Yes, we can compare as we've done with this exercise, but never being 100% as to what is/is not.
...and all of the above are not guesses; but rater monograms backed up with casino name text on either/both obv/rev... Let's find a lot and have more fun...