Pierre Labiche black Fortuny style pleats plisse midi straps evening dress

Gorgeous rare black evening dress by Pierre Labiche New York - Paris in a polyester plisse fabric with wide straps, back zipper closure and altered back (previous owner opened the back a little by sewing in the corners of the opening). Great vintage condition. Horizontal pleat direction on the body and vertical on the skirt. Marked size 12 Measurements (flat): armpit to armpit: 20.5'' waist: 17.5'' skirt length: 33.5'' top length: 15.5'' top of the shoulder to hem overall length: 55.5''