Sato Kanzan, ed., Satsuma-to meisaku shu (Nihon Bijutsu Token Hozon kyokai, Kagoshima branch: 1970), no. 87, p. 55 and 70.
_____, ed., Kusanagi daisha oshigata zen (Nihon Bijutsu Token Hozon kyokai, Kyoto branch: 1973).
_____, Kanzan oshigata shinto jiten (Tokyo: Otsuka Kogeisha, 1990), no. 628, p. 343.
Iimura Kasho, ed., Shinto taikan vol. 2, (Token Bijutsu Kogeisha: 1976), pp. 504-5
The sword smith is the son of Sasshu Kiyofusa and he became the adopted son of Ichinohira Yasuyo. There are few of his swords left. This sword is of typical Satsuma shinto style.