This is a pair of Yunomi tea cups made by Shuichi Iwamoto of Bizen ware. Mr. Iwamoto was born in Bizen in 1935 and is a regular member of the Japan Kogei Association. The two pieces have completely different personalities, but I think you will enjoy them. Size: Large Diameter: 7.2 cm Height: 8.2 cm Small Diameter: 7.2 cm Height: 7.8 cm Approximately. With potter's mark. No original box. They have been stored for a long time and are unused. Thank you very much.