This is Tsuboya ware from the late 18th to the 19th century. I believe it is Tsuboya ware, but it also resembles the soil of Yaeyama, so I cannot be certain. It was originally a hibachi (brazier) or nokoro (incense burner), but since I only use it as a chawan (tea bowl), that is the title. I prefer Tsuboya ware because it is fired hard. Also, the natural texture of the unglazed clay is rich and never gets boring to look at. Of course, it has been cleaned, and I have used it many times to make tea. I would be happy if it could be delivered to someone who will cherish it for a long time. Diameter: Approximately 10cm Height: Approximately 7.7cm As shown in the image, there are black stains, which may have occurred during firing. The size is approximate. It is old, so there are age-related scratches and stains. The color may differ slightly between the actual item and the image. Please understand the description and images before purchasing. Type: Pottery Type: Tea Bowl Type: Tsuboya ware