The image shows a close-up of the underside of a train locomotive. The locomotive is black in color and appears to be old and weathered. On the right side of the image, there is a small hole in the center of the locomotive, which is marked with an arrow pointing to the right. Below the hole, there are two red bolts and a black hose attached to it. The hose is connected to a metal pipe that runs along the bottom of the engine. The engine is resting on a set of railway tracks. The image is taken from a low angle, looking up at the engine and the surrounding area.