Vintage white knit cardigan with fine detail buttons

Shoulder pads. Made by Marie Claire. 50%cotton/50%acrylic. Labelled Medium but fits more like a small if the bottom button is buttoned up(see measurements). Approx 25in length, 10in item collar to shoulder seam, 18in shoulder seam to cuff. 21in pit to pit, 17in width at hem unstretched button up. Some brown stain at front edge of hem and on inner hem(see last pic)