The image shows a close-up of the engine of a steam locomotive. The engine is green and black in color and appears to be old and weathered. The steam is coming out of the boiler, creating a plume of white smoke that is billowing out from the right side of the image. The boiler is mounted on a large metal frame with a large wheel in the center. There are several pipes and valves running along the sides of the machine, and a few people can be seen in the background. The image is taken from a low angle, looking up at the engine.