Goryeo Celadon Censer with Animal Face Lid and Openworked Dragon Design

This celadon incense burner was fired during the Goryeo period.
It is divided into a lid and a body.
There is a flower bud, believed to be a lotus, on the top of the lid, and it has small and large round holes that have been openworked.
There are two animal faces on the top, with very three-dimensional eyes, nose, and ears, and even the teeth and whiskers in the mouth are made in great detail.
Incense smoke comes out from the holes in the buds and the mouth of the animal faces.
The body is rounded and bends like a board just below the rim.
The body has a double structure, inside and out, and the outside is openworked to look like two swimming dragons.
The lower part has a animal-like face and three legs that spread out towards the bottom.
The lower part has long legs, but it was fired without any supports.
A large stone nail mark remains on the underside of the lid.
The celadon glaze that covers the entire piece is a slightly light gray-blue color with fine crazing.
There are few examples of openwork carving even among Goryeo celadon, so the incense burner combining a dragon and an animal is a very rare item.

There is a crack that went all the way through the bottom of the pot
Please consider it as a decoration.
If used for practical purposes, there is a possibility of ash leaking, so please repair it or use it in a creative way.
There is also a chip on the bottom rim.
As this is an excavated item, there is overall deterioration of the glaze and discoloration from the clay, but there is still some shine.