Simplicity 5159; ca. 1963; Child's One-Piece Jiffy Jumper "Simple-to-Sew": A-line jumper with scooped neckline is sleeveless, has an opening at top of center back seam which fastens with a button and thread loop. V1 features a ribbon trim at center front neckline, front pockets with a purchased star applique and braid trim, neckline is also braid trimmed. V2 may be trimmed with buttons or a long ribbon bow.