But I have run into a problem. Common wisdom, aka my Janet Arnold pattern tells me boldly to sew all my back pleats down somewhere high on the upper back. My dream gown… and actually a few other gowns as well (like this one) clearly do not have all the black pleats sown down. I think there has to be some sewing down in the hidden part of the back pleats but not on the visible part. Maybe it has just disappeared (eaten by time) leaving pleats that they are so crisp that you could cut cheese with them. But that would have left traces and I can’t find any.
I am just not sure if my iron has a “Will-last-2-centuries-pleat-without-ruining-the-fabric” setting.