Southern Song Dynasty Guan ware Celadon Jade Object Bottle

A celadon porcelain bottle fired in a government kiln during the Southern Song dynasty.
It has a shape called 琮 and was originally used as a jade vessel in ancient China for rituals and ceremonies such as sacrifices and funerals.
The cylindrical hole symbolizes the heavens, and the square perimeter the earth, and is said to symbolize the union of heaven and earth.
As time progressed, it was made as bronze ware, and in the Song dynasty it was made as ceramic.
The shape is a quadrangular prism, and the four corners are carved with embossed patterns, and the long axis has a circular opening.
This item is also thought to have been used as a vase during ceremonies.
Black clay typical of Southern Song Dynasty kilns is covered with a thick gray-blue glaze that is slightly yellowish.
The large crackle-glazed that follows the unevenness of the vessel shape has brown clay that stands out.

There is no conspicuous flaws.Although the surface is slightly aged, it has a good luster.