Vintage 1980s Scott McClintock black velvet Victorian-style dress. Around ankle length, slightly dropped waist, oversized puffed sleeves with white lace trim and high white & cream lace illusion collar. Back zipper with faux pearl buttons at collar. No size/material tag; best fits modern XS/S -- see measurements.
Bust: ~34"
Waist: ~28"
Hips: up to ~46"
Length: ~47"
Sleeves: ~23"
For reference, model is 5'7" / 32DD / 25" waist / 38" hips and usually wears an XS.