Favorite this☆ Women workers testing engines, Plant 4, GMC Truck & Coach Division factory Description: View of woman workers testing engines at Plant 4, Engine Assembly, Bldg. 20, GMC Truck & Coach plant. Printed on front: "GMC Truck & Coach Division." Handwritten on back: "Plant 4, Engine Assembly, Bldg. 20, third floor. Engine test after assembly. Factories--GMC, ca. 1943." Details Resource ID: na050297 Subject: Women automobile industry workers--Michigan--Pontiac Motor vehicles--Motors--Testing Automobile factories--Michigan--Pontiac GMC Truck & Coach Assembly-line methods Photographic prints Date Issued: 1943 (year approximate) Format: 1 photographic print ; 8 x 9.75 in. Member of: National Automotive History Collection Filing Location: Factories--GMC, ca. 1943, #2 Rights: Physical rights are retained by DPL. Copyright is retained in accordance with U.S. copyright laws.