Previous answer is
　　Mumei (Enju Kunimura) 　
無銘（延寿国村）　　

Special Feature: Enju Taro is a son of Yamato Hiromura and later he
succeeded Rai Kuniyuki. He moved to Higo and founded Enju school.
He is said to have been a son in law, or a son of Hiromura from
Yamato Senjuin school, or grandchild of Rai Kuniyuki from a daughter
married into another family. He had a lot of pupils such as Kuniyoshi,
Kuniyasu, Kunitomo, Kunitada, and Kunitsuna. They flourished in
Kikuchi from the late Kamakura period to the Nambokucho period.
Their works don’t have distinctive characteristics, and they are quite
similar to the works by Rai school from Yamashiro.　However, their
works has Masamegokoro in Kitae, Shirake Utsuri appears up, Hamon
ha Nioikuchi that is lower than normal, functions in Hachu are really
mild and calm, the roundness of Boshi-tip is big, and Kaeri is shallow.
These differences are their great fascination. Hamon on this item has
distinctive elegance of Enju Kunimura, compared with other sword
smiths of his school, with bright Nioikuchi. It is a true, undoubtedly
genuine masterpiece.

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Appraisal Quiz #687 (April 16th, 2022)
Who made this sword do you think ?
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Blade length: 71.3cm or 28.07inches.
Sori:1.6cm or 0.62inches.
Mekugi: 1
Width at the hamachi: 3.26cm or 1.28inches.
Width at the Kissaki: 2.42cm or 0.95inches.
Kasane: 0.84cm or 0.33inches.
The weight of the sword: 770grams.
Shape: The blade is long and has adequate Sori and longer Kissaki.
Jigane: Koitamehada is full of lines with Jinie. Beautiful Jigane.
Hamon: Niedeki, round Gunomemidare gets bright.

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