Vintage 80's Besty's Things Black/White dress

Vintage 1980's , sleeveless dress. White on top and black on bottom half and back. Decorative buttons in front and hidden zipper in back. Slit in front. No stains or marks. Sizing changes over the decades so READ MEASUREMENTS. Laying flat Arm pit to pit 20"in Shoulder to hem 37"in Hem opening 22 1/2"in Slit opening 7"in