Rare 1970s Vintage blue calico prairie dress

Beautifully kept Gunne Sax-esque vintage dress. Amazing detail with gold straw trim, calico sleeve buttons, lace up bust among other intricacies. One of a kind piece and one of my very favorite dresses ever. Would keep but I can’t quite fit in comfortably anymore. Fits a very snug medium and would likely fit a small/x small best. A few loose threads but overall amazing condition this piece has been kept in from all the way back to the 70s. Will model is requested.