Previous answer is
　　Mumei(attributed as Den Norishige)
無銘(伝則重)　

Special Feature: Norishige is a swordsmith from Ecchu, originally named
Saikishi Fuoi Gun Gofuku Ju Kurosaburo, and a pupil of Soshu
Masamune. He was one of the “Masamune Juttetsu”.(top 10 pupils of Masamune)

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Appraisal Quiz #690 (May 7th, 2022)
Who made this sword do you think ?
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Blade length :　72.2cm or 28.42 inches.
Sori :0.7cm or 0.27 inches.
Mekugi : 　1
Width at the hamachi : 3.02cm or 1.18 inches.
Width at the Kissaki : 2.24cm or 0.88 inches.
Kasane : 0.58cm or 0.22 inches.
Shape : The blade is wide and thick with suitaable sori
and longer kissaki nice looking shape.
Jigane :Koitame hada well grained with jinie attach.
Hamon :Niedeki gunomemidare with thick nioikuchi and soft Habuchi
The Hamon looks summer clouds like Thundercloud.
In Hamon, long Kinsuji work and sunagashi.

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Answer will be posted at next Appraisal Quiz.

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