Vintage Christian Dior Robes de Soir 1980s Dress Cocktail Evening Mobwife

Vintage black dress by Dior. Looking up the tag history tells me it's from the 1980s. Features sheer long sleeves. The front left lapel (if you're looking at it) has an abstract feather or leaf motif pattern, created with beading and embroidery. The front is a wrap style. Measurements: 17 inch shoulder to shoulder. 22 inches shoulder to wrist. 42 inches long. The neckline v is 8 inches. The waist is 14 inches. The front has beading. Sleeves are black and sheer with velvet piping. Each wrist has a black button. No tag on the inside but it fits me and I'm a size 8.