Vintage 1980s Joseph Ribkoff Gala Women's Medium Black Beaded Maxi Evening Gown

Vintage Joseph Ribkoff Gala black beaded floor length gown tagged size medium. Fits about a modern 6/8 imo but please refer to measurements: 52” sth, 36” bust, 30” waist, 36” hips. There is a little bit of beading loss but no particularly bare spots. A couple rogue threads at the top of the slit on the back. Weighs a little over a pound.