The image is a black and white photograph of an engine assembly assembly line in a factory. The photo is taken from a high angle, looking down on the assembly line. There are several workers in the image, working on various machines and equipment. The factory has a high ceiling with metal beams and a number 3 hanging from it. The workers are wearing hard hats and are focused on their work. In the background, there are other machines and machinery. The image appears to be from the early 20th century.