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

Squared, hollow cylinder of the type ts’ung [cong] 琮; very tall form with wide projecting collar at both ends; bored from both sides leaving slight median ridge; richly mottled reddish brown, olive green, and dull yellow; scattered veins of cream white decomposition and some dark, rough incrustations; decoration: channeled and incised grooves, corner ridges and faint circles. (Collar chipped.)