This stemcup is 10,5 cm and made from a light colored stoneware. It is covered in an early green glaze. It is dated 10th to 9th century BC, and an early stage of celadon glaze. Most likely this piece is from Anhui province. The Anhui provincial museum holds very close examples in it’s collection. Typical for this period are the small dot-like applications and the ribs. These wares are sometimes called proto-celadon.