Simplicity 6612; ©1966; Misses' and Women's One-Piece Dress and Jacket: Sheath dress with set-in sleeves has pleat and zipper in center back seam. Dress V. 1 and 2 have short set-in sleeves and square neckline. Dress V. 3 has below elbow-length sleeves and high round neckline. Lined jacket V. 1 has shawl collar with notch detail, long set-in sleeves, flaps and front button closing.