1990's Beaded and Embroidered Dress

What exquisite detail on this dress: the beads, the sequins, the embroidery! It doesn't have any tags, so I'm taking a wild guess at calling it 1990's, but I think it's probably older. The straps have been taken in some (shown in last photo), so there is additional room there from the length that is listed. Necklace pictured is sold separately.

Labeled size: none
Modern size: M
PTP: 21"
Waist: 19"
Hip: 20.5"
Length: 33"
Strap: 15"

All vintage items have been previously worn & loved and may show natural signs of wear, unless otherwise specifically indicated. Measurements taken flat, when applicable. All sales final.