Simplicity 6492, Copyright, 1966, Misses' One-Piece Dress: Princess, A-line dress has back zipper. V 1 and 2 have high round neckline, set-in sleeves and optional top-stitching trim. Sleeveless V 3 and 4 have lowered round neckline. V 1 with below elbow sleeves has optional purchased belt. V 2 has short sleeves. V 4 has self ruffle trim.