View of workers assembling wooden boxes in Shipping Dept. at Plant 4, Service Dept., Bldg. 20, Operations Civilian and Military, GMC Truck & Coach plant. Materials are stored on shelves in background. Printed on front: "GMC Truck & Coach Division. 2-3-44." Handwritten on back: "Plant 4, Service Dept., Bldg. 20, Operations Civilian and Military. Box Making Dept. in Shipping Dept., 1st floor. Factories--GMC, 2-3-1944."