I took new photos because the previous ones were difficult to understand. A black-glazed tea bowl from the early Joseon Dynasty period. In Japan, it's known as "Kuro-Goryeo" (Black Goryeo) and has been cherished by tea masters since ancient times. Currently, there's a trend to call those with iron glaze applied over celadon glaze "Kuro-Goryeo," and those with a single application "black glaze," but I believe this is fine as Kuro-Goryeo. While it's not "all is well if the foot is good," it does have a fine foot. Conversely, even if the shape is good, I'm not interested in a piece with a poor foot. If you search, you'll find many examples online questioning what makes this Kuro-Goryeo. With a thick single application of glaze, it's easy to handle and I believe it's a first-class tea ceramic. It's difficult to see in the images, but there are countless fine scratches and crackles on both the inside and outside. There are no significant flaws or "crying" (defects). Diameter: Approximately 13cm Height: Approximately 6.5cm Comes with a matching box. There are countless scratches and crackles on the surface. Sizes are approximate. The actual item may differ slightly in color from the images. As it is an old item, there are age-related scratches, marks, and dirt. Please examine the description and images and purchase only if you are satisfied.