The image shows an old cannon on display in a museum. The cannon is made of metal and has a yellowish-green color. It has a large wheel on the left side and a smaller wheel in the center. The wheel appears to be made of wood and is attached to a concrete base. On the right side of the cannon, there is a person's hand reaching towards it, possibly inspecting it. In the background, there are other artifacts and a blue door. The ground is covered in cobblestones.