Butterick 4509; 1970s; Misses' Gown: Close-fitting gown in three lengths has scoop neckline with front slit, attached self bow variations, cut away armholes with or without short flared or straight full length sleeves gathered or darted at caps and topstitch trim. View E - high front hemline slit and bikini panties with elasticized edges. By John Kloss.