Betty Barclay fit and flare dress XS

In very good condition Betty Barclay vintage fit and flare dress size XS. My mannequin is a size 6. I believe the dress fits more like a 2/4. Will add measurements tonight 2/28. No holes. I had to dye dress. It had been stored hanging and the sun bleached a strip of it. Dye job isn’t completely even but difficult to notice due to pleating of skirt. Only other flaw is a missing male end snap at waist. Circa 1960s.