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Kantei keys
- Hamon. According to Japanese Wikipedia, he excelled in the 濤瀾刃 (tōran-ba), the temper line of great waves, and in an ō-gunome-midare with 矢筈 (yahazu) shapes; there are also blades of his in suguha in the manner of Sukehiro (助廣写し, Sukehiro-utsushi).
- Mei. 越後守包貞 (Echigo no Kami Kanesada) until around 1680, and then 坂倉言之進照包 (Sakakura Gonnoshin Terukane).
- The third. Iwamatsu’s blades are recognised by the shape of the characters of the signature, according to Japanese Wikipedia.
What is not on record
The sources consulted do not describe his jihada, his bōshi or his nakago.