Catalogue entry no. 200 by Max Loehr:
200 Long Chisel-like Blade
Mottled green jade with long whitish streaks and a brownish area near the butt. Thin, flat blade with straight sides, straight butt, and curved edge. The perforation, drilled from the upper side, is conical. On the underside, the blade is grooved lengthwise. Western Chou(?).