Vintage St. John Blue Dress

Wow! This dress is a true vintage gem! Beautiful St. John by Marie Grey periwinkle blue knit dress. It has an amazing button up back with all original buttons. Long sleeve and calf length. Two flaws that I found are a small area unraviling on the left shoulder, and the elastic around the waist is being held by safety pins. Both which are very easy mends. Seems to be a size med. I will add measurements upon request. (The mannequin is an xs-s/ 2-4) The dress fit loose on mannequin.