Washer with hibiscus-shaped rim in celadon glaze, Longquan ware, Southern Song dynasty, 13th century. Height 4.2 cm, diameter 11.0 cm, foot diameter 7.5 cm. © National Palace Museum, Taipei.

The flower mouth is washed, and the mouth edge is divided into six petals, with deep walls and shallow circle feet. The carcass is thicker and the outer wall is decorated with two string patterns. The whole vessel is fired using the mat firing method, with celadon glaze applied inside and outside. The color is green and the edges are slightly light brown. The glaze is clear and transparent, with brown and transparent patterns visible on the glaze surface. The toes are exposed, and are coated with a thin ocher color. 

The Nakamura Memorial Museum of Art in Kanazawa City, Japan also has a similar collection. Another vessel in the collection of the hospital has a similar shape. The celadon Kuikouchi (old porcelain 008709) was fired using the full-glaze branch firing method and is covered with celadon glaze. The glaze color is gray-green with a slight yellow tinge. There are brown patches on the inner and outer surfaces. There are seven dot-shaped support nails arranged on the bottom. Since the white carcass is exposed at the edge of the glaze peeling and the support marks, it reveals the possibility that it is a Jingdezhen product in the 15th century. (Google traduction)