Sources

Sources

Studies

1. NBTHK, Sword Journal no. 823 (August 2025): kantei no. 821, Wakasa no Kami Ujifusa, commentary by Ōi Gaku
2. JSSUS, Newsletter vol. 54, no. 1 (2023): “Swords that we like”, Hida no Kami Ujifusa, by W. B. Tanner and F. A. B. Coutinho
3. Japanese Sword Index: “Judging sharpness” (Kaihō Kenjaku, 1815)
4. Japanese Sword Index: “Shinto Swordsmith Ranking”

Dictionaries and encyclopaedias

1. List of Wazamono, English Wikipedia
2. 刀剣の業物一覧 (Tōken no wazamono ichiran), Japanese Wikipedia

Official records

1. Agency for Cultural Affairs, database of designated properties (no work of his)

Image credits

1. The same wakizashi: six views of the upper part, with the midare temper and the bonji. (wakizashi-1581-kissaki.jpg)

   Photo: dealer in Japan.