Bone spindle whorl

Bone spindle whorl, diam. 3.3cm. Flat top, curved side, probably a flat underside, but here the bone has eroded, and there are only tiny fragments of the original undersurface left. Hole diam. 7mm. Decorated with four groups of punched ring-and-dot on upper surface, irregularly placed; side has girth grooves single at top and bottom, double in middle, with alternating groups of grooves and punched ring-and-dot. Stained green from contact with bronze on upper surface.