Previous answer is
Kurihara Chikuzen no Kami Taira Nobuhide
Dated: August, Keio 3 (1867)
栗原筑前守平信秀
慶應三年八月日

Features: Kurihara Chikuzen no Kami Taira Nobuhide is often compared with Kiyomaro.
His work is characterized by a long boshi and active kinsuji.
This blade features a bohi on both sides, with a carved dragon and Kannon on the front and a Sanskrit character on the back.
He studied under Kiyomaro, who lived in Yotsuya, Edo at the time, and became his leading disciple.
His previous experience as a mirror craftsman benefited his horimono skills, laying the foundation for his intricate carvings.
He is also said to have studied under Kano Natsuo, and his carving style changed significantly after the first year of Meiji, becoming more shallow and rounded.
This sword is a fine example of his workmanship, with remarkable jihada and hamon, and carvings that exhibit Nobuhide’s unique style.
Interestingly, while Kiyomaro never carved into his blades, Nobuhide actively pursued horimono and took pride in his carving technique.
In any case, he became the top disciple of Kiyomaro, likely due to mutual trust and respect.

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Appraisal Quiz #845 (May 3rd, 2025)
Who made this sword do you think ?
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Blade Length: 69.4 cm (27.32 in)
Curvature: 1.5 cm (0.59 in)
Mekugi Hole: 3
Width at Base (Motohaba): 3.34 cm (1.31 in)
Width at Tip (Sakihaba): 2.49 cm (0.98 in)
Thickness of rim (Kasane): 0.74 cm (0.29 in)
Sword Weight: 795 g
Shape: This blade with a wide width of 3.34 cm and thick kasane, having curvature on both sides and a long, extended kissaki—demonstrating a highest-class shape.
Jigane: Ko-itame hada, well-forged with clearly visible grain and enhanced by excellent polishing.
This is an outstanding work with strong hataraki in the ha and faint utsuri appearing.
Hamon: Nie-deki in suguha with ko-ashi appearing, and the boshi is round, turning back with slight upward movement.

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