This change in the order of tea utensils was identified in "YAMANOUE no Soji ki" (a book of secrets written by YAMANOUE no Soji, the best pupil of SEN no Rikyu), and it should be noted that the Ido chawan (a rustic tea bowl possessed by Hideyoshi) made in Korea was among the meibutsu.
『山上宗二記』からは、この道具の序列の変化が確認され、また高麗物である井戸茶碗（秀吉所持）が名物に名を連ねている点も注目される。