It is renowned as 'O-meibutsu' (great famous objects), which was probably the work of the Southern Sung Dynasty or the Yuan Dynasty; it was intorduced into Japan during the Sengoku period (period of warring states).
古来「大名物」として名高い茶入で、中国の南宋または元(王朝)時代の作と推定され、戦国時代(日本)に日本に渡来した。