Catalogue entry no. 349 by Max Loehr:
349 Small Disk in Four Segments
Four thin segments of a moderately translucent, grayish brown stone. The segments are decorated with dragon bands executed with incised lines and sloping cuts. Two of these configurations, a and c, are identical, showing two heads facing to the left; on a third segment, d, two heads, arranged symmetrically, face in opposite directions; on the fourth, b, the arrangement is again symmetrical, but the design of both heads and curls differs from the rest. The cavities that form the décor still contain cinnabar. Each of the plaques has four small perforations near the corners. Early Eastern Chou.