Previous answer is
　 Bizen Kuni Ju Sukesada Hikobei Jo Saku
Tensho 5 Nen 8 Gatsu Hi
備前国住祐定彦兵衛尉作
家助

Special feature: Bizen Kuni Ju Sukesada Hikobei Jo is a swordsmith who flourished between the late Muromachi period and the Azuchi Momoyama period. However, a giant flood occured to Osafune village in Tensho years, almost all swordsmiths were dead. There, Toshiro Sukesada survived and lived there. After the war of the Muromachi period ended, the demand for swords decreased extremely, and swordsmiths had harder times than ever.

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Appraisal Quiz #721 (December 17th, 2022)
Who made this sword do you think ?
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Blade length:63.6cm or 25.03inches.
Sori:1.212cm or 0.47inches.
Mekugi:1
Width at the hamachi:3.36cm or 1.32inches.
Width at the Kissaki:2.45cm or 0.96inches.
Kasane:0.7cm or 0.27inches.
The weight of the sword:705grams
Shape: The blade is broad and thick with slightly small Sori and longer Boshi. Well-shaped.
Jigane: Koitamehada with lots of Komokumehada and Chikei. Elaborate Jigane with visible Hadame. One of the greatest Jigane.
Hamon: Niedeki with deep Nioikuchi. Toranba, and squared Hamon with deep Nioikuchi.
Rounded ball Hamon and becomes bright. Boshi has deep Nioikuchiand the tip gets sharper and turns back deeply. Sunagashi and Kinsuji work in Ha.

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