Previous answer is
Rai Kunimitsu (Not Guaranteed)
来国光(無保証)

Features:This tanto is finely crafted, but there are doubts regarding the authenticity of the signature.
The gold foil habaki is also well-made, but no guarantee is provided.

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Appraisal Quiz #837 (March 9th, 2025)
Who made this sword do you think ?
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Blade Length: 71.2 cm (28.03 in)
Curvature: 1.1 cm (0.43 in)
Mekugi Hole: 3 holes, 1 filled
Width at Base (Motohaba): 2.84 cm (1.12 in)
Width at Tip (Sakihaba): 2.08 cm (0.82 in)
Thickness of Rim (Kasane): 0.58 cm (0.23 in)
Sword Weight: 650 g
Shape:This blade is a standard width and a mitsumune.
It features a bohi and soehi carved on both sides, with an extended kissaki.
Jigane:The ko-itame hada is densely packed, exhibiting a strong utsuri.
Hamon:A nioi-based suguha with well-defined ashi activity.
The boshi is rounded and returns in a small circular manner.

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Answer will be posted at next Appraisal Quiz.

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