The image shows an old cannon on display in a museum. The cannon is mounted on a wooden platform with two large wheels on either side. The wheel on the left is black and appears to be made of metal, while the one on the right is green. The barrel of the cannon is long and cylindrical, with a pointed tip at the end. There is a small white object attached to the barrel, which is likely a part of the weapon. In the background, there are other artifacts and a map on the wall.