This is a Nambu iron kettle, a traditional Japanese craft. Nambu ironware is known for its distinctive texture and high heat retention. In particular, the surface irregularities (such as the "arare" pattern) seen in the image not only add to the design but also increase the surface area, enhancing thermal efficiency. Circumference: Approximately 57cm Diameter: Approximately 18cm Height: Approximately 10cm Capacity: Unknown