Rare Vintage YSL Rive Gauche 3 piece silk outfit

Vintage YSL raw silk 3 piece outfit. Iridescent pink, purple....some reds, oranges in the light. Skirt has 2 tiers of ruffles. Top has open slits on puff sleeves. The opening on both sleeves have raw unsewn edges (check pics). Red/hot pink tie gathers the neckline. both pieces are size 36. Top is 22" from neckline to Hem. Skirt is 27" from waist to Hem. Waist is 14" flat. Sash is 5.5" wide and 107" long.