Simplicity 4166; 1950s; Boy's Shirt, Shorts and Trousers: The shirt has a convertible collar, back yoke and front button closing. View 1 has a pocket on left front and long sleeves with wristbands. Views 2 and 3 are short sleeved. View 1 Trousers are long with a cuff and have a fly front with one soft pleat on each side of center front. Views 2 and 4 are shorts.