A Kogaratsu jar fired in the early Edo period. The design of Chōsen Karatsu, with sea cucumber glaze. Inferring from the rolled-flat lip and the grits on the bottom, this jar was made after the mid-1610s. Also, the weight is relatively light, and the tap molding marks were left on the inside. There are several engraved lines on the bottom, but it is unclear whether it is a potter’s mark or a naturally occurring one. The distinct contrast between the front and back of the fire expresses the wild taste.

There is a same color repair on the rim, about 3 cm. Other than that, there are no noticeable defects.