Previous answer is
　　　Mumei(attributed as Den Tametsugu)
無銘(伝為継)　　

Special Feature: The Jigane and Hamon looks like Norishige, but it is judged
as Tametsugu. Kinsuji works a lot, it is great. Sayagaki was written by
Dr. Kanzan and Dr. Kunzan. We truly recommend this one for you.

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Appraisal Quiz #686 (April 9th, 2022)
Who made this sword do you think ?
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Blade length:67.9 cm or 26.73inches.
Sori:1.8 cm or 0.70inches.
Mekugi:3
Width at the hamachi:2.79cm or 1.09inches.
Width at the Kissaki:1.75cm or 0.68inches.
Kasane:0.65 cm or 0.25inches.
The weight of the sword:605grams.
Shape: Osuriage, Bohi on the both sides with deep Sori. Boshi is slightly longer.
Jigane: Koitamehada is grained incredibly with Jinie. Elaborate Jigane with Utsuri.
Hamon: Suguha Hamon. It is really bright with partial Nijuba and Koashi. Boshi turns back round.

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Answer will be posted at next Appraisal Quiz.

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