The image is a photograph of a sign on a railway track. The sign is rectangular in shape and has a white background with black text. On the left side of the sign, there is a black and white photograph of an old steam locomotive with smoke billowing out of its chimney. The locomotive is on a bridge over a river, and the text on the sign reads "A Fast, Light Pacific" and "624". On the right side, there are two smaller photographs of the same locomotive, one of which shows a train passing over the bridge and the other of which is a train on the tracks. Below the photographs, the sign has a list of information about the locomotive and its history.