Lacey little black dress

Lacey, black pixie dress. Assume size 6. No designer tags on dress. The waist is elastic. There is a circle opening to reveal the small of your back. And it buttons up in the top back. She is 60% cotton 40% nylon. Lining is 100% polyester. Very light dress. The dress does up with a little black zipper along the left side. Signs of wear.