Previous answer is
Mumei(unsigned) attributed as Kobizen Nobufusa.
Special feature : There are 2 Nobuffusa Kobizen and koichimonji.
This sword belonges to Kobizen school.
The style of Kobizen generally high Koshizori and Utsubuse style sword.
The blade was cut shortend so this sword doesn’t have much sori.
The sword do not have Kizu and openings because the blade is Muku kitae without Shingane.
Also we can find the texture of the Jigane well because the Shinogiji was not engraved Bo-hi.
The most reliable Kanteisyo in Japan is Kocyu Origami.
I think this sword has kep
Appraisal Quiz #316 (November 7th, 2014)
Who made this sword do you think ?
Hints. ※The picture will be enlarged
Blade length : 68.7 cm or 27.04 inches.
Sori : 1.2 cm or 0.47 inches.
Mekugi : 3
Width at the hamachi : 2.85 cm or 1.12 inches.
Width at the Kissaki : 1.81 cm or 0.71 inches.
Kasane : 0.68 cm or 0.26 inches.
Shape : Thick and shallow Sori blade.
Jitetsu :Itame Hada and Mokume Hada mixed with Jinie attached.
There are Shirake-Utsuri.
Hamon : Hoso-Suguha, Shimari-Nioikuchi with Ko-Nie and Muneyaki.
Nioikuchi is bright. Boshi is Oo Maru round shape and little bit Hakikake.
Answer will be posted at next Appraisal Quiz.
(Please acknowledge not replying to mail about Appraisal Quiz by our convenience.)