Previous answer is
Signature: Mumei (Bushu Yasui) (NBTHK Hozon Token)
Signature: Mumei (Den Kotetsu) (NBTHK Kicho Token)
(Gold inlay inscription) Kanbun 3rd year, August 8th (1663)
Yamano Kaemon Nagahisa (Kao)
Ryosha Setsudan
無銘 (武州安家) (保存刀剣)
銘: 無銘(伝　虎徹)(貴重刀剣)
(金象嵌)寬文三年八月八日
山野加右衛門永久(花押)
両車截斷

Features:　This sword was previously judged to be the work of Kotetsu but was later appraised as Bushu Yasuie in the NBTHK Hozon Token certification. This sword bears the cutting test inscription of Yamano Kaemon Nagahisa.
It records a test of cutting through two bodies, dated August 8th, Kanbun 3 (1663).
The hamon is bright and suggests excellent cutting ability.

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Appraisal Quiz #853 (June 28th, 2025)
Who made this sword do you think ?
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Blade Length: 35.4 cm (13.94 in)
Curvature: 0.5 cm (0.20 in)
Mekugi Hole: 1
Width at Base (Motohaba): 2.65 cm (1.04 in)
Thickness of rim (Kasane): 0.43 cm (0.17 in)
Sword Weight: 210 grams
Shape: A standard width and thickness with a slight forward curve at the tip.
Jigane: Itame hada with visible grain and well-applied ji-nie.
Hamon: Gently undulating midareba, with matching patterns on both sides.　

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Answer will be posted at next Appraisal Quiz.

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