NBTHK Tokubetsu Hozon Token attributed to Omiya school
Collectible Nambokucho era Koto
<Swordsmith and sword feature>
Bizen Omiya school(in Omiya of Okayama prefecture ) was one branch of the Bizen Osafune school and were active from Nambokucho to Muromachi era. Their representative swordsmith were Morokage, Morikage in Kamakura era, in Ashikaga era Morikage and Morokage.
They were quite competitive to also famous Bizen Kanemitsu school in the same period and their forging style showed a mixture of Soden and Bizen characteristics.
This Koto seems like a Nagamaki-Naoshi with a typical Nambokucho era characteristics of splendidly wide, Omine feature as well as a beautiful Hada and Notare based Hamon with Utsuri.
This wide blade has an ordinary blade weight, Shinogi-zukuri, Iori-mune. The curve is Toriizori style and the blade top is Omine.
There are Katachiri Bohi(thick groove which extends to shinogi,leaves flat space only on Mune side) on both side of the blade.
<Hada - Forging>
Jihada is tight Koitame mixed with Mokume and Utsuri (misty white shadow ) appears while coarse Jinie granule attaches on the surface.
<Hamon - Temper patterns>
The Hamon is wonderful - Notare based Ko Gunome Choji with brilliant nie white crystals attaches abundantly and Nioi is quite clear and splendidly bright.
In the Hamon Suna-nagashi shows it's flowing sand-like pattern also rich Ashi, Yo and Shima appear beautifully.
Boshi- temper line of the tip is Midarekomi(wavy) with Hakikake activities and turns back to a gentle curl called Komaru.
<Nakago - Tang>
The Tang is Suriage (altered) and has Kiri Yasuri file marks. Nakago end was cut straight.
Solid copper single piece Habaki with Yoko Yasuri(horizontal) file marks.
<Koshirae - Mountings>
This sword is mounted in Shirasaya.
Polish: There are thin rusts here and there due to Furutogi - Nugui- naoshi( touch up polish) will remove them all.
Defects such as openings, chips and cracks: None.
**** Please Note ****
Depend on your browsers and monitors, images of Katana appear differently quite often.
Please do not hesitate to ask questions about our Katana and request us detail pictures for further information.
We gladly provide all informations we have for our customers.
|Category||Katana||Blade length||63.5cm/ 2'1"/ 2shaku 9bu 5rin|
|Curvature - Sori||2.1cm/ 0.83"/ 7bu||Mekugi (Pegs)||2|
|Blade Bottom Width||34.2mm/ 1.35"/ 1sun 1bu||Blade Bottom Thickness||5.7mm/ 0.22"/ 1.9bu|
|Blade Top Width||25.6mm/ 1.0"/ 8.4bu||Blade Top Thickness||4.3mm/ 0.17"/ 1.4bu|
|Weight||Blade only: 624g / 1.38lbs||Period||Nambokucho (approx.1333-1392)|
|Inscription / Signature||None
||Registration in Japan|| 29 March 1957
Hyogo Prefecture Board of Education