Cocktail Hoffman vintage gown

Such a pretty black gown with delicate embroidery and lace on the bustline. The fabric almost has a slight linen feel. I believe it's a polyester cotton mix but there is no label content. Floaty overlayer whilst the underskirt has a straighter line. Back zipper. Bust 34' waist 28' hips 35' length 54' weight 0.14 lbs. Model is 5'7 and a size 2.