The image is a close-up of a stone wall with a rectangular plaque on it. The plaque is made of a light-colored stone and has a textured surface. The text on the plaque reads "Mount Pentelicus Quarry Marble Used in Parthenon 447 B.C." The plaque appears to be old and weathered, with some cracks and chips visible on the surface. There is also a small square in the center of the plaque.