Gia Huy Soft White Floral Retro Tie Shoulder Dress - 90s does 30s
No size tag - see measurements of the dress, you will want to allow extra room for comfort/breathing: approx 32" bust, 27" waist, 34" hips, 40" long - Model is 5'1" XS - dress fit well as shown.
Unknown material content, feels like synthetic chiffon with smooth lining - Thin, not stretchy. Dry clean only. Back nylon zipper.
Nice condition - very faint coin size stain at back side skirt - see closeup photo under paper clip.

This item is sold from an excellent, highly rated vintage boutique.