Vintage princess dress puff sleeve open v-back large bow black velvet white

Gorgeous vintage princess dress. Prom, wedding, date night. Black velvet top and white tulle layered skirt. Open v back with a large white bow. Midi length. Back zipper closure. GUC. Size 8. No brand tag. (Says L.L not sure if that is the brand) Measurements taken laying flat are approximately: Pit to pit: 17” Length: 48” Sleeve: 13.5” Waist: 14”