Catalogue entry no. 609 by Max Loehr:
609 Pendant in the Shape of a Disk-Axe
Light green jade with whitish discolorations and some reddish earthy deposits (that may have been applied artificially). The shape is derived from Shang or early Western Chou disk-axes, such as Nos. 22 and 23 above, but the miniature size and the suspension device at the top indicate that the object is a pendant. It may have been worn as an amulet or, as suggested by the almost exact duplication of the ancient prototype, it may have been a refined archaeological toy. A playful touch is provided by the linear engraving, identical on both sides, of symmetrically arranged animal heads, which adjoin the flanges and the dragon figures below these heads. The dragon figures are reminiscent of ancient bronze decorations in the distorted rendition of the Sung catalogues. Conceivably, therefore, the pendant may be as late as Sung.