Cong jade Sculpt, culture Liangzhu

Beautiful greenish jade with reddish, ocher and amber spots. Sculpted in the traditional "song" shape, with a rectangular exterior decorated with horizontal relief stripes and a hollow cylindrical interior. the perimeter is finely decorated with incised borders. The central register has another mask engraved with large eyes framed by fine lines and spirals.It has signs of wear due to age. Neolithic period app. 6000-2000 Bc) or later