David Brown California Womens Vtg Yellow White Polka Dot Floral L/S Dress P (S)?

David Brown California Womens Vtg Yellow White Polka Dot Floral L/S Dress Good condition, missing bottom button and stitches on back slit are loose, otherwise very nice vintage condition, no rips, holes or tears, yellow w/white polka dots and pink/blue floral outlines, has a side button up top, long sleeves, there is no material or care label and size says P, which think is a small, but please see photos and measurements below Dress form in photos is a medium form with a bust of 34.5" Approximate measurements while laying flat Armpit to armpit - 19" Length - 46"