You with zigzag thunder pattern, Early Zhou, Shanghai Museum
A you is a lidded vessel that was used for liquid offerings by the Chinese of the Zhou and Shang Dynasties. It sometimes lacks taotie in favor of smoother surfaces. Sometimes these vessels are zoomorphic, especially in the form of two owls back to back. Usually the handle of the you is in the form of a loop that attaches on either side of the lid, but it is occasionally a knob in the center of the lid. They can be quadruped or have a single base.
