Girls 1970s Vintage Prairie Dress and Apron Sewing Pattern: A-line dress in two lengths has round neckline, back zipper and full-length sleeves gathered at cap with elasticized wrist forming self ruffle or short wide sleeves. A: has peter pan collar. B: has self neckline ruffle. C: has self hemline ruffle and purchased pregathered lace neckline ruffle trim. Sandwich board apron in two lengths has 'U' neckline, applied waistbands and purchased bias tape finish and ties.