Vintage purple and white floral secretary dress

Vintage 70s dress with a watercolor look purple floral print, clusters of grape purple and plum purple against white background. Elastic waist, sash of the same material through threaded loops. Short sleeves, buttons down the front to waist, not lined. No fabric information but can safely assume polyester. Tag: Haband for Her. Approximate measurements: Bust 39”, Waist 25"-31”, Hips 45", Total length is 38”. Shown on Size 10/12 “model.” Necklace not included.