|Specified type||Prefecture designation|
|Designated date||December 24, 1963|
44 cm in diameter.
21 cm in height.
Bottom diameter 29 cm.
It is said to have been held at Miyako-shi Kuromori Shrine, made of iron, and its use is unclear, but it is said to have been used for Zen sen bowls.
There is an inscription of the first year of Kenbu (1334), and it is characterized by left Fuyo casting on the outside half.