Retro style black Gap cocktail dress

Cute 1960s style cocktail dress from the Gap has an empire waist and A-line skirt with ribbon detailing around the waist, open back, and hidden zipper. Wool-blend fabric with a satin lining. Marked a size 6, but on the smaller side. Excellent used condition. Chest: 17.5” Waist: 14” Hip: 18” Bottom opening: 33” Shoulder to hem length: 38”