Previous answer is
Mumei (Osafune Nagamori)
Special feature: This blade is Mumei, NBTHK judged as Osafune Nagamori.
Nagamori was a swordsmith who belongs to the Nagayoshi school. He was active in the same period as Nagayoshi.
This sword is magnificent work. The Hamon is Notare, Gunome Midare, Togari-Ba, and square shape Ha. And there are many Ashi and Yo.
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Appraisal Quiz #612 (October 24th 2020)
Who made this sword do you think ?
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Blade length : 69.7 cm or 27.44 inches.
Sori : 2.0 cm or 0.78 inches.
Mekugi : 1
Width at the hamachi : 3.06cm or 1.20 inches.
Width at the Kissaki : 2.0 cm or 0.78 inches.
Kasane : 0.66 cm or 0.25 inches.
The weight of the sword: 725 grams.
Shape : Wide and rather thick Katana, longer Kissaki, with moderate Sori.
Jigane : Ko Itame hada well grained with Jinie attach.
The Jigane is beautiful.
Hamon : Nie Deki, From the Hamachi is Suguha and then Choji Midare and Gunome Midare. The Hamon reach Shinogi-Ji.
Boshi is Midarekomi Ichimai style.
Hints. ※The picture will be enlarged
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