Simplicity 4791; ©1943; BOYS' JACKET AND LUMBER JACKET: The jacket may be fully or partially lined and the front and back are seamed to a shoulder yoke. The sleeve is eased to the wrist band and finished with an adjustable button closing. Style I, a hip-length jacket, is made with a contrasting front and two welt-slot pockets, outlined with top stitching. Style II is gathered to a belt at the waistline and has patch pockets finished with double stitched flaps. Pattern includes PRIMER with illustrated instructions for alterations, cutting and sewing.