Gilberte Doinel (Claire Maurier) uses a Carven perfume.
It’s impossible to tell which one (the front label isn’t visible), but four were the Carven perfumes released before 1959 – Ma Griffe in 1946, Robe d’Un Soir in 1947, Chasse Gardée in 1950 and Vert et Blanc in 1958.