Previous answer is
Signature:Mumei (Attributed to Tametsugu)
無銘（為継）

Features: Tametsugu is said to have studied under either Go Yoshihiro or Norishige and is therefore also known as Etchu Tametsugu.
The attribution to Go Yoshihiro inscribed by Miyagata Shinonome Sensei is particularly noteworthy.
Although the appraisal by the Japanese Sword Museum attributed this blade to Tametsugu, the two attributions may be regarded as being of comparable standing.

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Appraisal Quiz #919 (October 17th, 2026)
Who made this sword do you think ?
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Blade Length: 53.0 cm (20.87 in).
Curvature: 2.0 cm (0.79 in).
Mekugi Hole: 1.
Width at Base (Motohaba): 3.06 cm (1.20 in).
Width at Yokote: 2.21 cm (0.87 in).
Thickness of rim (Kasane): 0.65 cm (0.26 in).
Sword Weight: 540 g.
Shape: A well-proportioned wakizashi with substantial kasane, a wide mihaba, deep curvature, and a slightly elongated kissaki.
Bo-hi are carved on both sides of the blade.
Jigane: Exceptionally tightly forged jigane with a masame-like grain pattern.
Hamon: Suguha with fine ko-ashi.
The boshi has a rounded tip and turns back.

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Answer will be posted at next Appraisal Quiz.

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