Vintage Bill Blass Black Cocktail Slip Dress 1970s

Vintage Bill Blass black dress. Came from the estate of a former Bill Blass model in New York. I dont know size. From the top of the straps to the bottom of the dress it is 38" long, from pit to pit it is 15 1/2" and where the belt is it is 12" wide. If you would like other measurements just message us! Some of the lace has browned, and one of the hooks on the belt needs sewn back on but we have it, no holes or tares. Please see pictures for details and condition.