An adze blade in dark grey stone, possibly argillite, with an asymmetrical outline and asymmetrical quadrangular cross-section. There is an extra facet on one side. The butt is undifferentiated. The side surfaces are ground, the other areas polished. The bevel is flat, and the chin curved and oblique. The cutting edge is curved. The front profile is convex, the back straight. The cutting edge is sharp. The poll is broken obliquely.