
It is called "rakkann" to seal with a signature of the calligraphy.
It is called "tennkoku" to make the seal (seal cutting).

Tennkoku is established as the world of the art which a calligraphy and a sculpture connected. I make it with oneself.

As for this stone, tennkoku is for exclusive use.
There are various kinds and scales.
As for the most famous seal, it was sealed calligraphy of Wang Xizhi.







