should be "Casino de Vichy" or "Casino Vichy" (CV).
CV was the original, a much more important casino historically and in chips, and was there for a much longer time than the short lived younger Grand Casino de Vichy.
I spent sometime looking for Casino Vichy in the Chip Guide and did not imagined that the name it was under was The Grand Casino......

Anyway, I would strongly suggest that the name under these two eras of this casino should be the important one: Casino de Vichy
Also the statement below that the Grand Casino started in early 1900s is wrong, the Casino de Vichy was the one that started then....

These two casinos were quite different, different "management" and purpose, they were simply in the same location.
They were as different as the different "Flamingos hotels, casinos, Fl Hilton, etc etc."