Previous answer is
　 Mumei(Echizen Seki) 　

Special feature : Konie deki gunome midare and choji midare mixed and like
Ichimonji style and attributed as Echizen seek master piece .
I think someone thought the blade looks Ichimonji and put off the
signature and made as Ichimonji.

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Appraisal Quiz #575 ( February 8th, 2020)
Who made this sword do you think ?
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Blade length : 66.7 cm or 26.25 inches.
Sori : 2.4 cm or inches.
Mekugi : 2
Width at the hamachi : 2.89　cm or 0.94 inches.
Width at the Kissaki : 1.95 cm or 0.76 inches.
Kasane : 0.59 cm or 0.23 inches.
Shape : Regular width and thickness with large Sori. Shinogi Tsukuri. Iori Mune.
Jitetsu : Itame Hada, There are Midare Utsuri.
Hamon : Nie Deki, Choji Midare and Gunome Midare.
There are Ashi and Yo. The Nioikuchi is bright.

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