Vintage St John knit dress light blue long sleeve size XS

Gorgeous baby blue knit dress has long sleeves with slits, and an opening in the back under the button. Comes with a jeweled clasp belt. The dress has shoulder pads with a little pouf in them. The button behind the neck is missing some of its little jewels. Please see pictures. The neckline and the back opening and the sleeve slits are all surrounded by tiny jewels. A few are missing from the sleeve slits, but it is not noticeable at all. My mannequin is about a size 4/XS, and the dress fits it nicely. Please see measurements for fit. There is a slight stretch all over. The belt is 21" at rest, stretching to 24", plus the jeweled clasp. It shows no real sign of wear, the jewels must have come off from decades in storage. I'm happy to answer any questions. There are no fabric content or garment care tags in the dress. shoulder to shoulder: 13" armpit to armpit: 15" sleeve: 22" bust: 28" can stretch to about 32" neck" 16" waist: 24" stretches a little to 30" hip: 34" shoulder to waist: 17" waist to hem: 25" shoulder to hem: 42" flare: 36" (plus slit)