There’s a Guerlain flacon montre on the dressing table of the showgirl Marisa Florian (Dorian Gray). There’s no way to know what cologne the bottle contained: the disk label can’t be read and the black and white of the film doesn’t help. In any case, the choice is historically accurate: the bottle with the glass stopper was produced from 1936 to 1972.

Thanks to my friend Rocco for the id.