Catalogue entry no. 45 by Max Loehr:
45 Slender Dagger-Axe with Grooved and Crenelated Tang
Opaque, yellowish buff jade with sparse whitish and terracotta-colored markings. The uncommonly slender blade is strongly curved; it is crested; and has neatly beveled edges. Its base is marked by a transverse band of three incised, boxed lozenges with simple striations above and below. An unusual feature is that the tang is asymmetrically shaped, so that its butt slants. It is decorated by five flat ribs in low relief, with a tiny notch at the end of each; between them are four angular indentations. Late Shang or Western Chou.