80s does 50s A-line cocktail dress

Stunning a-line party dress from the 1980s, inspired by the fashions of the 1950s. Features boat neckline, plunging back, bow, rushed waistline, and tulle underskirt. Tagged size 12 but fits more like a modern 8 or 10. Hem hits just below the knee. Brand is Patty O'Neil. Feel free to message with questions or offers!