caption: The image shows a black and white photo of two men working on a train in a factory. The train is in the center of the image, with two people standing on either side of it, one of them holding an object in their hands. On the left side of the train, there is another person standing, and on the right side there is a ladder. In the background, there are metal rods and other objects, and the ceiling of the factory can be seen at the top.