Saint Laurent Rive Gauche Pink & White Cloud Kaftan

This is an amazing dress. Pearl button closure at back of neck. No fabric tag but feels like a heavy silk. Cording trim along neck, sleeves and hem. Some marks. See photos. French size 38 Pit to pit: 19" this also the width of the entire piece. Shoulder: 15" Sleeves: 19" Length: 48" 19" slits on both sides.