The Automobile Industry - 1923
"THE FINAL ASSEMBLY LINE IN A BIG AUTOMOBILE FACTORY
When cars were first built, all the parts were simply dumped in piles on the floor. Now the frame starts down one line, an engine block down another, a transmission and rear axle down others. When they all meet, they have each been assembled and are ready to be united into a complete chassis on the final assembly line.
(These outstanding historic photographs are from a 1923 National Geographic article entilted: 'The Automobile Industry - An American Art That Has Revolutionized Methods in Manufacturing and Transformed Transportation')