Vintage Guy Laroche French dress Paris abstract AOP

Guy Laroche vintage dress Made in France Size 40 FR Size US medium? I am a small and it’s a bit roomy on me but it’s semi adjustable with the tie for the shoulder and waist. View measurements for details . Could fit a variety of sizes! Armpit to armpit: approx 17.25 inches Length: approx 40.5 inches VG shape. Gently worn. Clean. Smoke free home A10