Authentic Vintage black beaded sleeveless dress from 1920s

My aunt gave me this vintage dress she wore to an opening night in LA in the early 90s. She found framed at a vintage store and it hasn't been worn since. Its pretty good condition considering. There is a small hole and some loose beads, but definitely wearable. I would save its a medium. I wear a small and its pretty big on me even considering the fit at the time. It is sheer and does not have a lining.