Jean Dunand vtg Art Deco CIGARETTE CASE antique silver enamel paul emile brandt

I got this recently from an estate in Cambridge, Mass. The previous owner (in her 80's) likely got it from her artist mother, maybe on European travels.

The case also looks like ones made by Paul Emile Brandt. The case is about 9 cm x 7 cm.

There are a few hallmarks inside (hard to read). It has some wear from age.