Vintage White Slip by Figurefit
Size 34, check measurements: Measures 15" across bust laid flat. So 30" around bust - there is room in the cups as mannequin is 32" bust.
Measures 14" across under bust. So 28" around. 30" waist. 35" hips. 39" long. Adjustable strap. Mannequin is 5'8"
Good condition with a few missing stitches around neckline and pin size rust color spot below bust.

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