Subcontracting (Wilbarger and Sons). These are special jigs and chucks designed and made at Wilbarger and Sons Shop, Harrisonburg, Virginia, for special war production jobs. The workers in many thousands of little shops such as this are using all their ingenuity to do what they can to speed the job of arming the men fighting for world freedom. In this shop, production, generally speaking, has been speeded up tenfold by such special devices as these