The image is a photograph of a sign at the National Museum of the United States Air Force. The sign is rectangular in shape and has a blue background with white text. The text reads "LOCKHEED P38 LIGHTNING" in bold letters at the top. Below the text, there is an image of a lockheed p38 lightning aircraft, which is a type of fighter jet used by the US Air Force during World War II. 

The image shows the aircraft in action, with its wings spread wide and its engines roaring. The aircraft is painted in a camouflage pattern and is parked on a grassy field with a blue sky in the background.

On the right side of the sign, there are two smaller images of the aircraft, one showing the cockpit and the other showing the landing gear. The first image shows a close-up of the cockpit, while the second image shows an aerial view of the engine and the fuselage. The image also includes a brief description of the lockheed's history and significance.