Previous answer is
Shinano Kuni Ju Miyairi Kiyohira Saku
信濃国住宮入清平作
Showa 63 Nen 8 Gatsu Kichijitsu
昭和六十三年八月吉日
Special feature: Shinano Kuni Ju Miyairi Kiyohira is a son of Miyairi Akihira, Living National Treasure. His skill was splendid and won a series of prizes as Mainichi Newspaper Award, Excellent Award, Encouragement Award, and Effort Award. In Heisei 12, he was awarded by the headmaster of Nagano prefecture and passed away on the 26th of May, Heisei 15.
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Appraisal Quiz #723 (January 7th, 2023)
Who made this sword do you think ?
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Blade length : 51.515cm or 20.28inches.
Sori : 0.9cm or 0.354 inches.
Mekugi : 1
Width at the hamachi : 2.1cm or 0.827inches.
Width at the Kissaki : 1.9cm or 0.748inches.
Kasane : 0.45cm or 0.177 inches.
The weight of the sword 300 grams
Shape : Thin and regular thickness slender Wakizashi.
Jigane :The Koitame skin is well packed and a beautiful and pale reflection (Utsuri)appears.
Hamon :The deep gunome midare of Nie deki nioikuchi is grilled in hamon, sunagashi, and kinsuji. Hakikake style.
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