Catalogue entry no. 93 by Max Loehr:
93 Disk in Three Segments
The originally translucent, deep brownish green stone has for the most part turned an opaque ocher, while some areas show the white, softened substance resulting from calcification. The three segments vary slightly in size, their arcs measuring about 117, 127, and 116 degrees. Near the adjoining edges of the three segments, conical holes have been drilled. Shang or Western Chou.