Cocktail best dress LBD NYC high end department store

Cocktail dress - "LBD" from the 80's -super CHIC cocktail / mother of the bride dress! The straight neckline and slightly fitted silouette are classic and comfortable. There are satin covered buttons on the shoulders, and the LOW cut back has a magnificent swag that reaches to the waist. This is such a stunning look, I love it with a long pearl necklace worn backwards. It has a slit up the back. Looks amazingly sexy with heels. This is a style that will last forever.
It is fully lined, with a zipper in the back. Looks like silk crepe de chine but best it is a synthetic blend. Size 10.
Extremely well made. Purchased at a high end department store in New York City.