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Posted

Jo James,

welcome to the NMB forum!

The TSUBA seems to be of the NANBAN type. The NAKAGO (= tang) photos are a challenge as they are not well focused. Please use a plain dark background, light from the side and orient photos blade-tip vertically upwards so reading is easier. 

There are no photos included of the blade, so not much could be said on it except that the NAKAGO looks KOTO to me. Signatures are not always authentic! 

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Posted

I think my first guess would be Yoshifusa (能房) from Kongōbyōe (金剛兵) school. Could you perhaps take clearer picture of the signature? Of course it might be very difficult as it is bit worn down.

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Posted (edited)

Close up on inner face of fuchi - looks like makers mark but don’t want to clean up myself obvs so this is best I can get image-wise. A circle with inner dot and maybe 2 or 3 additional marks to right.IMG_4590.thumb.jpeg.ab94704c4c028178178c5d955a36aada.jpeg

Edited by SamSwo
Posted

James,

all NAKAGO photos (except one with a date) cannot be read as they are upside-down. Please do not shoot the photos at an angle but right from above. The TSUBA and FUCHI photos are not oriented correctly either. The NANAKO-JI of the FUCHI is of low quality, the horses are hopefully a bit better (if I could see them properly).

It is difficult to give an opinion of a sword only with photos, so these should be as good as possible. Just look at how swords are presented in books !

Posted
18 minutes ago, SamSwo said:

Close up on inner face of fuchi.....

This low resolution photo is not helpful; it could be anything. FUCHI are usually not signed or marked on the inside.

Posted

Jo James:

This last bit looks like part of the date. All that I can see is a day (auspicious) in the eighth month. I don't see the era or year listed above. 

 

John C.

Screenshot 2026-04-12 at 1.21.11 PM.png

Posted

Jussi is right, this is signed "Kongohyoe no-Jo Yoshifusa Saku", and dated "a day in August". That unhelpful date is frequently seen with Kongohyoe blades made during the Muromachi period. 

There were 2 Yoshifusa smiths, and I suspect this may be the work of the second, 1469 peak period, Hawleys reference YOS 1226. Rather than pictures of the furniture that have nothing to do with the sword, I would have expected some of the standard measurements, like Nagasa, Kasane, etc. to determine the exact period. This nakago appears to have been cleaned, hence the vertical marks that look almost made with a file. The rust appears to have some shale-like patches, so one might suspect it has been in a fire. I would check it out for being re-hardened.

Lloyd

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  • 1 month later...
Posted

Jo James:

I don't kantei swords, however I can give you a couple of tips.

Note the red line in the first photo. That is the measurement for the nagasa, or cutting edge. The perpendicular green line in the middle is the sori, meaning curvature. That can help determine age or period or school as well.

The second pic show a fingerprint on the blade. You'll want to wipe down the blade with rubbing alcohol to remove it. Then oil the blade lightly with mineral oil.

 

John C. image.thumb.png.f2969ada9026595c784293803a2b8875.png

Screenshot 2026-06-01 at 10.56.43 AM.png

Posted

John's picture with the red line, and knowing the nagasa says everything necessary to pinpoint the period of manufacture. It is from the earlier Sengoku period, or warring states, or Period of Anarchy, by the nagasa; something seen with many schools during this time. The red line highlights the sori, which as you can see reveals 3 individual curvatures. Koshi sori at the base, central sori, and the addition of saki sori seen an inch or two behind the kissaki. This is common in the latter 1400's in Kongohyoe and I have a very nice Moritaka (1492) which is almost identical in length and shape to your blade. It does not have a bo-hi  unfortunately. So, I think this must be from the later Yoshifusa with a peak period stated as 1469.

Lloyd F.

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Posted
On 6/1/2026 at 10:20 PM, flemming said:

John's picture with the red line, and knowing the nagasa says everything necessary to pinpoint the period of manufacture. It is from the earlier Sengoku period, or warring states, or Period of Anarchy, by the nagasa; something seen with many schools during this time. The red line highlights the sori, which as you can see reveals 3 individual curvatures. Koshi sori at the base, central sori, and the addition of saki sori seen an inch or two behind the kissaki. This is common in the latter 1400's in Kongohyoe and I have a very nice Moritaka (1492) which is almost identical in length and shape to your blade. It does not have a bo-hi  unfortunately. So, I think this must be from the later Yoshifusa with a peak period stated as 1469.

Lloyd F.

Ps any thoughts on fire damage with sight of new images ?

Posted (edited)

Regarding fire damage, I think I see a hamon in one photo, however I have acquired a few blades including an Inoe Shinkai which were "burned out". A good polisher can do a Kesho polish in which the hamon appears to exist, but careful examination reveals it is not there. The only way to be sure, is to use a light, like an overhead tungsten or led spotlight, and force the nioi-guchi to illuminate, which they all will. I am sure you have seen the effect in photos if nothing else. If it is there, at some angle you will see it, usually near a light flare. If no hamon is illuminated, it is not there, and the metallurgy has changed from a fire. That is the only way to be sure, but shale type rust on the nakago is an indication that it should be checked.

Lloyd F.

Edited by flemming

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