Catalogue entry no. 105 by Max Loehr:
105 Notched, Serrate Slab
Fairly heavy, irregularly quadrangular slab with a wide perforation and four quite irregular notches, some deep and some shallow. On three of the arcs are small serrations or “teeth” in sets of four. The stone is a translucent, relatively dark shade of celadon-green, becoming a greenish brown along the straight edge which has no teeth. The perforation seems to have been drilled from both sides and the interior surface then evened. Shang(?).