I made a new dress!
I didn't quite finish it (as you can see by the super huge seam allowance visible through the sleeve, which still needs finishing, among other things) but it was definitely wearable, and I'm pretty happy with it! It's made of 100% cotton dotted swiss, hand sewn with cotton thread, and unlined for now, but I may add a plain cotton lining behind the waistband. I haven't decided on buttons yet either, so for now, it's being worn pinned closed. (Which is actually period correct, after all!) ;)