The image shows a close-up of a piece of rock with a black and white checkered ruler next to it. The rock appears to be old and weathered, with cracks and crevices visible on its surface. On the right side of the rock, there is a small indentation in the center with the letters "MTD" written on it in white chalk. The letters are written in a cursive font and are slightly faded, indicating that the rock has been exposed to the elements for some time. The ruler is likely used to measure the size of the indentation.