Item Tag 10? Medium Or Large?

The Vtg Breli Originals Blue & Cream Floral Blouson Dress with Lace Collar is a vintage piece from the 1980s, perfect for a workwear look. This dress features shoulder pads,with a paisley pattern, a lace collar, and a blouson style. Made from polyester, this size estimate hand written sz 10,can be Medium? Large? XL?? Waist gather.Or Large,pls verify your size or dm us,measurements pictures,dress exudes a secretary/geeky vibe, making it a unique and stylish addition to any woman's wardrobe.Belt NOT included Pls see pictures as they're part of description,details and measurements,pit to pit 21.5”(43) gathered waist (37) Thanks for looking