Previous answer is
Echigo Kuni Yoshimitsu/Showa 68 Gatsu Kichijitsu
Special feature: Echigo Kuni Yoshimitsu is working as Mukansa sword smith. He was born in 1948 at Nigata,
became disciple of Yoshihara Yoshindo in 1967 and start to make a Japanese sword.
After that, he got a lot of award and became Mukensa in 1983. Most of his peace is copy of Ichimonji
but he also make calm sword, copy of Hizen Yoshimitsu like this one.
Appraisal Quiz #603 (August 22nd, 2020)
Who made this sword do you think ?
Blade length : 66.5 cm or 26.1inches.
Sori :1.4 cm or 0.5 inches.
Mekugi : 3 (2 are filled)
Width at the hamachi : 3.09 cm or 1.21 inches.
Width at the Kissaki : 2.17 cm or 0.8 inches.
Kasane : 0.61cm or 0.24 inches.
The weight of the sword 590 grams.
Shape : Bohi are engraved on both side. regular width and thickness, deep Sori and longer Kissaki.
Jigane : Itame-hada, Hada-tachi niedeki attached and Chikei work.
Hamon : Niedeki Funomemidare with Notare. Nijuba, Sunagashi, long Kinsuji worked.
Hints. ※The picture will be enlarged