Simplicity 3521; ca. 1960; Half-Size Slenderette - Misses' and Women's One-Piece Dress: Dress has lowered neckline, short kimono sleeves and six gore skirt with yoke pockets. Belt is self or purchased. V. 1 has self collar and rick-rack trim. V. 2 has contrasting collar, braid trim and ribbon bow. 12 pattern pieces.