Vintage Linen Dress or Cover-Up

Bought this at a vintage store in Nelson and have never worn it! Really pretty scalloped embroidered edges, eyelet and lace detailing, linen fabric. Same on the front and back! No size, but i would say because of the boxy shape it could fit a small to large. Shoulder to hem is 31 inches long. Laying flat the width is 29 inches. Listed as Free People for visibility.