Previous answer is
Mumei(judged as Den Ryumon) The blade has Hagire.
無銘（伝 龍門信吉）
Special feature: It is supposed to be made by Ryumon Nobuyoshi. Jigane is grained well like Norishige works. It is filled with Jinie and Utsuri appears.
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Appraisal Quiz #704 (August 13th, 2022)
Who made this sword do you think ?
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Blade length :72.12cm or 28.39inches.
Sori :2.27cm or 0.89inches.
Mekugi : 2
Width at the hamachi :3.2cm or 1.25inches.
Width at the Kissaki :2.31cm or 0.90inches.
Kasane :2cm or 0.78inches.
The weight of the sword:580grams.
Shape: Osuriage, the blade is broad and thick, has adequate Sori and bigger Kissaki.
Jigane: Niedeki Gunomemidare, Utsuri appears and mixed with Koitame.
Hamon: Niedeki, deep Nioikuchi, Suguha with active Ashi, Boshi turns back round to be end with Yakizume.
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