Celadon Washer with Four Rings

The washer (xi) had two functions: one was a washing vessel like a basin; the other was a brush washer in the scholar’s studio. This vessel is a brush washer. Proto-porcelain, which has a glaze of greenish tinge, appeared during the Shang dynasty. Developing from stoneware with pressed decor, it was a transitional product between pottery to porcelain which developed from hard ceramics with pressed decoration.