Vintage Black 1960s Keyhole Black Empire Waist Cocktail Dress

Vintage 1960s black cocktail dress with silver sequined triangle keyhole at neckline. Union made. No brand or material tags, feels like polyester. Marked a vintage size 12. Measures 34" at bust, 39" hips (measured under zipper), 34.5" long from top of strap to bottom hem. It has a large blind hem that could be let out to add more length. In great condition. 60s cocktail party evening new years sequin sparkle