Panoply silver beaded strappy gown size 4

Panoply brand gown. Pale silver satin and silver beading details on bust and bustle. Plunge neckline, thin straps, side zipper, soft cups in bust, matching chiffon silver wrap, form fitting with slight A line, bustled in back. Floor length for 5'3. My baby sister's prom dress! Worn once, GUC, some slight discoloration along the edge as shown. Size 4.