There was another production somewhere along the line by CARO, Paris (a different composition) showing a shipping label which contained 50 jetons of the same exact monogram.

My pieces came from a casino owner in the area 20-years ago with a note saying he got them directly from "GC" Grand Cercle Aix-les-Bains... and that's what I passed on to KMW. The pieces are 1950s or maybe even earlier

That's all I know...