The image is a yellow sign with black text and an image of a blue train. The sign is located in a grassy area with trees and bushes in the background. The text on the sign reads "GWS 18000 Gas Turbine Electric Locomotive - built 1949". Below the text, there is a brief description of the project, which states that since the early 1900s, many types of electric locomotives were built in Great Western Railway. The project was developed by the British Railways in the early 20th century.