Long French atelier coat, marked size 42, small menswear size, womenswear UK12/14. Salt and pepper cotton fabric made by heritage manufacturer Boussac, most likely 1960s, deadstock item. 21.5" pit to pit. These are very versatile, can be worn as a dress, overshirt, come with an attached belt.
Deadstock fabric has some stiffness which will go from the first wash.
Salt and Pepper Atelier Coat - Small
Pit to pit: 21.5" (55cm)
Sleeve shoulder to cuff 24" (61cm)
Shoulders 17" (43cm)
Chest 42.5" (108cm)
Back length 44.5" (113cm)