Previous answer is
　Naniwa Ju Gassan Unryushi Sadakazu Zo(Kokuin)/Meiji Gannen Kishu

Special feature: Sadakazu the First who went by the name of Yagoro was born in 1836 at Hikone in Koshu province, present Shiga pref. He became an adopted son of Gassan Sadakichi who lived at Osaka. Sadakazu started to learn when he was eleven years old. He was approved as a Teishitsu-gigeiin, a Craftman to the Imperial Household in 1906 and received a command to make a gunto for the Emperor Meiji in the next year. Sadakazu passed away in 1918, aged 73.
Sadakazu's second son, Sadakatsu was also a famous swordsmith.
Sadakatsu's third son succeeded the name Sadakazu as the Second was approved
an important intangible cultural assets known as Ningen-kokuho in the postwar Japan.
Generally, as the blade is getting smaller, as the difficulty increases to make it perfect.
He had been constant in his devotion to making sword
all his life. Everybody respected him for the nobility of his mind.
His character appears on his works in every corner especially
on their meticulous attended tang to the file pattern.

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Appraisal Quiz #546 (July 6th, 2019)
Who made this sword do you think ?
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Blade length :　69.3　cm or 27.28 inches.
Sori : 1.7 cm or 0.66 inches.
Mekugi : 　3
Width at the hamachi : 2.72 cm or 1.07 inches.
Width at the Kissaki : 1.91 cm or 0.75 inches.
Kasane : 0.58 cm or 0.22 inches.
The weight of the sword 655 grams.
Shape : Regular width and thickness Katana with Koshi Zori.
The shape is elegant style.
Jigane : Itame Hada and Mokume Hada with Jinie attach.
Hamon : Ko Nie Deki, Suguha base with Ko-Ashi.
The Nioikuchi is thick. The Habuchi is soft. The Hamon is graceful.
In Ha, there are fine Sunagashi and Kinsuji.
Boshi is Notare and Hakikake style.

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