1960s Day Dress Juniors Size 11 Peter Pan Collar Pencil Skirt Lavender Vintage

Circa 1950s or 1960s purple day dress with a wide waistband accented with six white buttons. It has a metal zipper closure at the back and two hidden side pockets, a Peter Pan collar, and short sleeves with lace trim. There is a tag attached which states it is a size 11 (juniors). Measurements taken flat, one side. Tag Size: 11 Underarm to underarm: 17" (34" bust) Waist: 13" (26" waist) Length: 45" Sleeve width at opening: 5" There is yellowing at the white collar and a small brown stain, approx the size of a dime, at the lower back of the skirt, as shown. No fabric content given, but likely a cotton or cotton blend.