Simplicity 8179; ca. 1970; Dress with three necklines: The collarless, dart fitted sheath dress has back zipper and optional purchased belt. Views 1, 2 and 3: short, set-in sleeves. Views 4, 5 and 6: sleeveless. Views 1 and 4: slightly lowered round neckline. Views 2 and 5: low round neckline. Views 3 and 6: V-neckline.