Vintage fit and flare dress 40s/50s

Vintage fit and flare dress- estimated 1940s/1950s No tags- brand, size and fiber content unmarked. Fabric feels like a stain possibly acetate but I’m unsure Fabric is thick and substantial with no stretch. Dress is pull on with no zipper but includes a belt. No marks or holes. Great condition. Looks possibly handmade with raw or pinked seams at interior. Chest = 24” flat Waist = 20” Length = 42 1/2” Although the measurements look like a large to extra large without a zipper it will fit smaller more like medium/large Model is 5’6” size 6/small 🫧 clean and ready to wear 🚭smoke free home 🐶 pet friendly home 📫 ships next day