This cooler, intended for liqueur bottles, is fitted with a central, removable panel that is perforated in a decorative pattern. These holes would allow the water from melting ice to flow from one side to another.
Marking: Painted in blue enamel on underside:  Crossed Ls enclosing a letter (B?) (Sèvres factory mark and presumed year letter);  Traces of a C or crescent (unidentified)
Incised on underside:  ch;  o a
Mr. and Mrs. Charles Wrightsman , New York (until 1976; to MMA)