The image is a photograph of a green sign with white text on it. The sign is located in front of a black machine gun. The text on the sign reads "XE TANG M.48 A3" and "Main battle tank". Below the text, there is a list of specifications for the main battle tank, including the weight, maximum speed, armament, and other specifications. 

The background of the image is blurred, but it appears to be an outdoor setting with a concrete floor and a red and white sign that reads "U.S. Army had some 370 M48 tanks in Vietnam by July 1969."