Jessica McClintock vintage 1 shoulder ruffle strap black sheath dress size 4

This classic design from Jessica McClintock is in great condition. It has one strap with a cascading ruffle. Fully lined. Rear zip closure. Boning along the sides of the bust. The material has stretch. The size says 6, but it fits more like a 4. Approx knee length but please check measurements. Free of holes, stains or wash wear. Armpit to armpit 15” flat, can stretch to 16.5” Shoulder to hem 35” loc 14