One-tier tube (<em>cong</em> 琮) with masks

Tubular ring with four angles slightly projecting, a variation of the type ts'ung [cong] 琮, possibly a bracelet; translucent, mottled creams, browns, and traces of gray green; light sprinklings of incipient disintegration; decoration: channeled and in low relief; four rectangles with t'ao-t'ieh [taotie] 饕餮 masks carved in two planes and meeting in center of face. (Rims have old smoothed breaks.)