vintage Dorothy Farbo sequin cocktail dress

Vintage Mignon by Dorothy Farbo black cocktail dress. The size tag is missing but the approximate measurements are armpit to armpit = 18", waist = 15" and length = 41" so I would guess it to be about a size 6. Dorothy Farbo designed mainly cocktail and evening wear for Mignon for 38 years beginning in the 1950's. This long sleeve dress is made of either a silk or polyester crepe (fabric is not listed). Waist is beaded. Fully lined. Back is button up from the waist with a zipper under the buttons. Dress is in wonderful vintage condition -- no missing beads.