Previous answer is
Bisyu Osafune Tadamitsu/Bunmei 16nen 8 gatsu-hi

Special feature : Bishu Osafune Tadamitsu is the son of Norimitsu.
At that time, more katana was more popular than other weapons as many close
Katsumitsu, Munemitsu, Norimitsu, Sukesada has been active at that time.
During Bunmei period, Hikonee Tadamitsu has succeeded on making incredible Jigane
with gorgeous Choji Midare. It is wonderful work with fine Boshi shape as well.
This piece does not have personal signature Zokumyo as Tadamistu however,
that will not be a problem as it is already valued as Jyojyo saku rank.

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Appraisal Quiz #334 (March 27th, 2015)
Who made this sword do you think ?
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Hints. ※The picture will be enlarged

Blade length : 72.0 cm or 28.34 inches.
Sori : 1.5 cm or 0.59 inches.
Mekugi : 2
Width at the hamachi : 3.20 cm or 1.25 inches.
Width at the Kissaki : 2.40 cm or 0.94 inches.
Kasane : 0.53 cm or 0.20 inches.
Shape : Oosuriage, wide and Ookissaki blade.
Jitetsu : Ko-Itame Hada and Mokume Hada mix and well grained.
This is beautiful Jigane. There are Utsuri. The Shinogiji is Itame and Masame Hada.
Hamon : Ko-Nie Deki, Gunome Midare with deep Nioikuchi. Double-Ha.
In Ha, there are Sunagashi and Kinsuji. Boshi is sort of round shape.

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