Vintage dress Plaza South Petite women's S blue white polka dot button up

Plaza South Petite vintage 90's button up navy blue white polka dot dress, sleeveless, collared Women's Small (tag states size 8 but measurements are closer to small, please see below for best fit) Approx flat measurements (Measurements are taken while item is lying flat and not stretched) Armpit to armpit 16.5" waist 15" top of shoulder to hem 47.5" Condition is excellent, no flaws noted