As well as Koya-gire (fragments of the Kokin Wakashu), it is a valuable old manuscript of "Kokin Wakashu" which was made during the Heian period, and an important work in the history of calligraphy.
『古今和歌集』の平安時代の古写本として高野切と並び貴重なものであり、書道史上も重要な作品である。