Previous answer is
Satsuma Koku Hoki Kami Ason Masayuki
Dated February, Kyowa 1, Year of the Rooster (1801)
薩摩国伯耆守朝臣正幸
享和元年酉二月

Features: Masayuki was a Kyushu swordsmith whose workmanship closely resembles that of Motohira.
This blade also displays the characteristic hidden chisel mark (kakushi-tagane).
If the file mark on the tang is positioned slightly off the centerline, it is considered evidence of an authentic signature.
Conversely, if the line runs exactly down the center of the tang, the signature should be regarded as a forgery.

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Appraisal Quiz #904 (July 4th, 2026)
Who made this sword do you think ?
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Blade Length: 70.30 cm (27.68 in).
Curvature: 1.52 cm (0.60 in).
Mekugi Hole: 1.
Width at Base (Motohaba): 3.31 cm (1.30 in).
Width at Yokote: 2.15 cm (0.85 in).
Thickness of rim (Kasane): 0.78 cm (0.31 in).
Sword Weight: 805 g.
Shape: A powerful blade with wide mihaba, thick kasane, deep curvature, and an elongated kissaki, giving it an excellent overall appearance.
Jigane: Well-forged ko-mokume hada.
Hamon: Nie-deki with a deep nioiguchi, mixed with notare.
The boshi continues into an irregular midare pattern.

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Answer will be posted at next Appraisal Quiz.

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