caption: The image shows a glass case containing a pair of bronze objects, which appear to be a cannon and a wheel, on display in a museum. The cannon is made of metal and has a cylindrical shape with a handle on one side and a spool of thread on the other. The wheel is also made of bronze and is connected to the cannon with a metal ring. Both objects have a rustic, aged look to them, suggesting they have been exposed to the elements for some time.