Vintage 80s Nadine black sequin prom dress party dress

Vintage 1980s black sequin prom dress or party dress from Nadine. Spaghetti straps. Back zipper closure. Big chest bow. Poof skirt with drop waist style. Midi length. Tagged size 5, I estimate this as a modern XXS or XS based on measurements. Excellent condition. Union made (has Union tag dating to 1974-1995). Pit to pit: 14” Waist: 13.5”