Tanto "Omi-daijo Tadahiro"
blade length 25.6cm
This tanto has a Kata-kiriha zukuri and the signature
in the blade, such a style is usually found in Kogatana. So this tanto
is a Kogatana style.
On the Kogatana style, the surface which has signature
is not polished to keep file mark and signature. But this tanto has been
polished on the signature side as same to a normal Katakiriha-zukuri blade.
So the signature becomes shallow, unfortunately.
The steel is wood grain layer pattern with jinie. It
is fine on the obverse side, and a little rough layer appears on the reverse
side. Usually the surface with signature is not polished.
The hamon is Suguha (straight pattern) made of bright
konie (small particles). Some Kinsuji, uchinoke, sunagashi, and Kuichigai
The habaki is a silver foiled. It is original from the
Bag and Paper
The paper of NBTHK ranks it to Tokubetsu Kicho Token.
It is judged twice on Showa 35 and on Showa 39. On the
reverse of the paper, there is a stamp of the second judgement.
As a matter of fact, the blade is really good, but the
signature is doubtful for our eye. Therefore the price is not that of genuine
Omi-daijo Tadahiro tanto's.
Unfortunately the signature is not enough to study its
chisel work exactly. If you believe the judgement by NBTHK, this tanto
is rare and good sample of Omi-daijo Tadahiro.
We have confirmed NBTHK that the paper is not fake.
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