caption: The image shows a black and white drawing of a man working on a machine, with a scale at the bottom. The man is wearing a hat and a long coat, and is holding a hammer in his right hand. He is standing in front of a large machine with a large wheel in the center. The machine is surrounded by a variety of tools and materials, including a saw, a drill, and a wrench. The scale is a standard measuring tool used to measure the size of the machine.