Previous answer is
Mutsu Kami Fujiwara Tsunashige/(Gold inlay) Kagotsuruhe Kanbun 9 Nen Sai Tori 4 Gatsu 11 Nichi
3 Tsu do Saidan Shibazaki Den Saemon Masatsugu(Kao)　

Special feature: This blade is nice shape.
Mutsu Kami Fujiwara Tsunashige was a student of Ise Daijo Tsunahiro.
The style is similar to his master. At a glance, the blade looks Kotetsu.
According to one theory, it is even said that Kotestu was a student of Ise Daijo Tsunahiro.

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Appraisal Quiz #550 (August 3rd, 2019)
Who made this sword do you think ?
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Blade length :　71.81　cm or 28.27 inches.
Sori : 1.66 cm or 0.65 inches.
Mekugi : 　2
Width at the hamachi : 3.10 cm or 1.22 inches.
Width at the Kissaki : 2.25 cm or 0.88 inches.
Kasane : 0.70 cm or 0.27 inches.
The weight of the sword : 885 grams.
Shape : O Suriage Katana, wide and thick Katana with large Sori.
Jigane : Mixture of Ko Itame Hada and Mokume Hada well grained with Jinie attach.
Hamon : Suguha with thick Nioikuchi.
In Ha, there are Sunagashi and fine Kinsuji.

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