Vintage black sequined/beaded cut-in armhole V neck top scalloped edges EUC

Vintage unusual high cut armhole black V neck sequined and beaded V neck top. Scalloped edges. Hem comes to a V front and back. Very long hidden back zipperFully lined with the zipper edges also covered. Armpit to armpit measures 19 inches. Waist measures approximately 17 inches.. Back of neck to bottom of the back V in hem measures 24 inches.