caption: The image shows a drawing of a machine with a cylinder on top of it, which is believed to be a steam engine from the early 20th century. The machine is composed of a cylindrical shape with a handle on the side and a nozzle at the top. The cylinder is connected to a series of pipes and valves, and the text on the paper reads "Steam Engine". The steam engine is depicted in black and white, giving it a classic, vintage look.