Previous answer is
　Mumei (transmitted as Yukimitsu 行光)

Features: Yukimitsu was a swordsmith in Kamakura and apprentice of Shintogo Kunimitsu, the founder of Soshu-den. It is said that his works have strong Nie.

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Appraisal Quiz #800 (June 22th, 2024)
Who made this sword do you think ?
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Blade Length: 67.1 cm (26.42 in)
Curvature: 1.1 cm (0.43 in)
Mekugi Hole: 1
Width at Base: 2.82 cm (1.11 in)
Width at Tip: 1.82 cm (0.72 in)
Thickness: 0.67 cm (0.26 in)
Sword Weight: 595 g (1.31 lbs)
Shape: This piece is very rare with a single mekugi hole in its ubu nakago. It has a deep curvature with an elongated kissaki.
Jigane: Excellent ko-itame hada with prominent utsuri.
Hamon: Bright and clear suguha with well-functioning ko-ashi. The boshi is round and returns sharply.

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Answer will be posted at next Appraisal Quiz.

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