Previous answer is
Mumei (Rai Kuninaga)
Special feature: Rai Kuninaga was a student of Rai Kunitoshi and he moved to Settsu Nakajima province, so he was called Nakajima Rai.
Compare with Rai Kunitoshi and Rai Kuniniga, Hamon and Jigane are different.
Appraisal Quiz #641 (May 22nd, 2021)
Who made this sword do you think ?
Blade length : 74.6 cm or 29.37 inches.
Sori :1.67 cm or 0.65 inches.
Mekugi : 3
Width at the hamachi : 2.81cm or 1.10 inches.
Width at the Kissaki : 1.33cm or 0.52 inches.
Kasane : 0.74cm or 0.29 inches.
The weight of the sword 645 grams.
Shape : Ubu Nakako, regular width and thickness blade with deep Sori.
Jigane : Ko Itame hada well grained with Jinie attach. There are Usturi.
Hamon : Ko Nie Deki, Choji Midare with soft Ashi.
Answer will be posted at next Appraisal Quiz.
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