Vintage Ms Chaus retro polka dot cotton dress

Vintage 1980's Ms. Chaus retro blue and white polka dot dress. Size 8. This is such a cool 1950's retro looking dress. White belt. Short sleeve. 1/2 button up; button covered placket. Side pockets. 2 breast pockets. In very good vintage condition -- belt may need to be washed/cleaned but other than that, there is no wear. Approximate measurements: armpit to armpit = 18" and length = 48".