Catalogue entry no. 300 by Max Loehr:
300 Arc-Shaped Dragon
Mottled gray-green jade, calcified to a creamy yellow tone along the borders and all over on the reverse side. This nearly semicircular segment of a narrow disk is shaped as a dragon of the type described in No. 299 and has a similarly beveled, sharp-edged projection at the tail. The contours are economically defined; the details are incised. There is a biconical perforation at the mouth. Early Western Chou.