Fabric is unknown, but I’m guessing its cotton or a cotton blend.
The dress has smocking on the front and a button placket that is decorative only. It has short kimono sleeves with a gusset. There is a high square collar and trim around the sleeves and the collar.
Dress has a full pleated skirt and center lapped back zipper.
That is not original belt, but I’ll throw it in.
This is a sweet little dress that would be the perfect summer/fall transition piece. I tried to find something on this label, because I see this every once in a while, but all I could find was on the actual Joan of Arc.