From Vintage Patterns:
Simplicity 4369; ©1953; Junior Misses' and Misses' One-Piece Dress: Bodice features a V neckline and kimono sleeves. Flared skirt is softly pleated at front waistline. View 1 has three-quarter length sleeves and features a collar. View 2 has three-quarter sleeves. View 3 has short sleeves, contrasting trim and bodice fastens with snaps.