The Taotie! It's a motif that was commonly found on ritual vessels from the Shang and Zhou dynasty.
In 550 B.C.E. Cyrus the Great, the leader of the Persians, conquered the Medes and united the Iranian people under one ruler for the first time. Cyrus became the first king of the PersianEmpire and went on to establish one of the largest empires in world.
What is your peice? I can help you but I just need to know what it is !