Appraisal size M/L (?) 100% linen sleeveless mini dress

Appraisal size M/L (?) 100% linen sleeveless mini dress. Unlined, non-stretch. Zipper closure in back. There was also a hook and eye closure but the hook is missing. Darts at bust. Small kick-pleat in back. Ptp = 20”. Length = 33”. GUC