Qui Sait? by Lancome c1946

Qui Sait? by Lancome: launched in 1937. Created by Armand Petitjean.

Peut-Être ("Perhaps" in French) became Qui Sait ("Who Knows" in French) in 1956, however I have found publications dating to as early as 1946 using the name Qui Sait (US Patent Office info). The reason for the name change is that it would be easier for Americans to pronounce.

The name Qui Sait was used previously by another French perfumer, Lournay in 1925.

The Golden Ribbon Package Perfume c1947

Stands approximately 3" tall.

Peut-Etre by Lancome c1937

Peut-Etre by Lancome: launched in 1937. The name means "perhaps" in French. The perfume was renamed "Qui Sait? in 1954, because it was easier for non-French speaking customers to pronounce.