The image shows a small piece of clay core of a stone mould for casting bronze axe. The clay core is brown in color and appears to be old and weathered. It is attached to a small metal hook on the left side of the image. On the right side, there is a white card with Chinese text written on it. The text on the card reads "Bronze period Excavated from Tai Long, Lantau Island". The background is a beige-colored surface.