Previous answer is
Mumei Hosho
無銘(保昌)

Features: The Hosho school was based in Takaichi District, Yamato Province, and is renowned for its highly skilled swordsmiths, including Sadamune, Sadayoshi, Sadakiyo, and Sadaoki.
Dated works by Sadayoshi survive from the Bunpo (1317–1319), Karyaku (1326–1329), and Gentoku (1329–1331) eras, providing clear evidence of the period during which the school flourished.
The workmanship of the Hosho school is characterized by distinctive features such as finely forged, continuous masame hada throughout the jigane and higaki-yasuri (crosshatched file marks) on the nakago (tang).
These characteristics give the Hosho school a particularly distinctive identity among the 5 Yamato schools.

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Appraisal Quiz #921 (October 31st, 2026)
Who made this sword do you think ?
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Blade Length: 71.0 cm (27.95 in).
Curvature: 2.2 cm (0.87 in).
Mekugi Hole: 2 (1 filled).
Width at Base (Motohaba): 2.85 cm (1.12 in).
Width at Yokote: 1.94 cm (0.76 in).
Thickness of rim (Kasane): 0.63 cm (0.25 in).
Sword Weight: 625 g.
Shape: A katana with standard mihaba and kasane, featuring deep curvature.
Jigane: Beautifully refined and tightly forged jigane with clearly visible utsuri.
Hamon: Gunome-midare mixed with pointed togari-gunome.
The boshi also displays a midare pattern, ending in a ko-maru (small rounded tip) with a turnback.

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