Previous answer is
Yusuishin Sadayoshi Saku(Mukansa swordsmith)/Showa Mizunoto-I Aki(1983)
Special feature: Sadayoshi was a modern swordsmith
in Tokushima prefecture. He was born in 1908.
In 1928, he started to study forging under Gassan Sadakatsu.
In 1943, he moved to Mishima of Shizuoka prefecture
from Tokushima prefecture, and he moved many swords while World War 2.
He has gotten Nyusen prize many times,
and he became a Mukansa swordsmith in 1996.
“Yusui” of his signature means clear springwater.
And so, he might use clear springwater for making swords.
Appraisal Quiz #565 (November 23rd, 2019)
Who made this sword do you think ?
Blade length : 71.5 cm or 28.14 inches.
Sori : 1.5 cm or 0.59 inches.
Mekugi : 2
Width at the hamachi : 3.09 cm or 1.21 inches.
Width at the Kissaki : 2.36 cm or 0.92 inches.
Kasane : 0.65cm or 0.25 inches.
The weight of the sword: 870 grams.
Shape : 6cm Suriage, Machiokuri wide and rather thick Wakizashi.
Jigane : Ko Itame Hada well grained with Jinie attach.
The Jigane is beautiful.
Hamon : Nie Deki, Gunome Midare and Ko Gunome Midare with Ashi.
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