Guerlain, Caron and Jean Patou fragrances are displayed at Selfridge’s beauty department.

From the far left: there are Guerlain Mitsouko (in the flacon bouchon coeur) and Vol de Nuit (in the flacon rayonnant) on a tray.

On the glass counter there are Jean Patou Colony (in the quirky pineapple bottle) and L’Heure Attendue.
While I appreciate the choice of displaying these beautiful bottles, there’s a problem: Colony, created by Henri Almeras, was launched in 1938, ten years after the time in which the 4th season is set (1928). The situation is even worse for L’Heure Attendue, another Almeras creation launched in 1946, 18 years later.
Last, there’s a bottle of Caron Tabac Blond in a glass cabinet on the far left. It’s a correct choice, because this innovative creation by Ernest Daltroff was launched in 1919.
Kitty’s perfume counter is packed with Jean Patou fragrances. We can see several bottles of Joy and three smaller bottles.
The miniature on the left is 
Later in the episode, a poster for Joy can be seen.





