Previous answer is
Naniwa Ju Gassan Sadakazu Seitan Kore/Keio 4Nen 8 Gatsu Kichijitsu
Special feature:adakazu 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.
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Appraisal Quiz #581 ( March 21st, 2020)
Who made this sword do you think ?
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Blade length : 61.3cm or 23.134 inches.
Sori :1.2 cm or 0.47 inches.
Mekugi : 2
Width at the hamachi :2.92 cm or 1.15 inches.
Width at the Kissaki : 2.89 cm or1.138 inches.
Kasane : 0.44 cm or 0.173 inches.
The weight of the sword 760 grams.
Shape : The blade is thick with suitable sori and very long Kissaki
The sword was Nagamaki and before and then changed to a sword
which is called Nagamaki Naoshi.
Jigane :Itame hada and mokume hada mixed with jinie attach and utsuri appear.
Hamon :Nie deki kogunome midare continued
from the Hamachi to Kissaki area.
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