Catalogue entry no. 421 by Max Loehr:
421 Dragon Silhouette
This specimen is from the same kind of jade as No. 420, and is very similar in design and execution as well as dimensions; it differs only in a few details. The head, for instance, is without a crest, and its position suggests that, in contrast to No. 420, the entire object should be inverted so that the widest part of the body is uppermost. The inverted position is confirmed by the claw placed below the neck at the lower corner. This claw, together with the other claw-like elements along the lower edge, forms a horizontal bottom line. Four perforations: top center, through the claw at bottom center, through the neck, and at the claw farthest back on the lower edge. Later Eastern Chou.