An adze blade in dark grey stone with an asymmetrical outline. The cross-section is rounded rectangular with convex sides. The butt is undifferentiated. The surface of the poll is flaked/bruised, the other surfaces are polished, and there are signs of sawing on the sides and back. The bevel is convex, with a straight chin. The cutting edge is slightly curved. The front profile is convex, the back straight. The cutting edge is sharp.