Previous answer is
Signature: Mumei (Unsigned)(Norishige 則重)

Features: Edo-period sword books such as "Kokon Meizukushi" list Noriyoshi as one of the Masamune Juttetsu (the ten great students of Masamune).
However, judging from the shape of his tachi and tanto, and the existence of works dated Showa (1312–1317) and Gen'o (1319–1321), it is considered reasonable to accept the theory in Muromachi-period sword books that he was a student of Shintogo Kunimitsu, and he is regarded as a fellow student of Masamune.
The workmanship appears to be modeled on Ko-Bizen and Ko-Hoki, with a boldly patterned, prominent jihada forming matsukawa hada, and beautiful, bright nie with an antique appearance applied thickly and clearly.
This is an excellent piece.

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Appraisal Quiz #916 (September 26th, 2026)
Who made this sword do you think ?
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Blade Length: 70.4cm (27.72in)
Curvature: 1.6cm (0.63in)
Mekugi-ana: 1
Motohaba: 3.09cm (1.22in)
Sakihaba: 2.03cm (0.80in)
Kasane: 0.75cm (0.30in)
Sword Weight: 850 g
Shape: A powerful blade with a wide mihaba, moderately deep curvature, and an elongated kissaki.
Jigane: Finely forged masame hada throughout the blade, producing a remarkably clean and refined jigane.
Hamon: Suguha with a deep nioiguchi and well-defined ashi. The boshi flows smoothly in an ichimai-style turnback.

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Answer will be posted at next Appraisal Quiz.

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