56| Nanboku-Cho Tanto (南北朝短刀)

This is a detailed part of chapter 20.  Please read 20 | Nanboku-Cho Tanto(南北朝短刀)  first, before reading this chapter.

 

20 Enbun Jyoji Kowakizashi Tanto

The characteristic of the picture above, the shape is emphasized in the drawing.

At the end of chapter 20 | Nanboku-Cho Tanto(南北朝短刀, there is a list of swordsmith’s names.  Hiromitsu and Akihiro represent the most common characteristic of Nanboku-Cho Tanto.

56 cropped Hiromitu photo 20 HitatsuraHiromitsu From Sano Museum Catalogue (permission granted)

 

Enbun Jyoji Ko-wakizashi Tanto is also called Sun-Nobi Tanto.  The top part of the Tanto bends outward slightly, this is called Sakizori.

Hiromitu and Akihiro Characteristic

Shape———-wide width.  Usually 1 foot and 1, 2 inches long.  Thin body.  Sakizori

Hamon ——-Tempered line can be wide and narrow.  Yakidashi (1, 2 inches above a Machi area) is narrowly tempered and wider tempered line above.  Hamon around Fukura area is showy.  Mainly Nie.  Sunagashi, Kinsuji, Gunome, Umanoha-Midare (shape like horse teeth), Hitatsura appears (see above drawing).

Boshi———-Irregular, uneven temper line, the almost entire area. Deep turn back.

Jihada ———Wood grained

Nakago ——-Tanago-Bara shape (refer 20 | Nanboku-Cho Tanto(南北朝短刀).

Nobukuni

The first generation Shodai Nobukuni is the top three students of Sadamune.  He is called Sadamune San Tetsu (貞宗三哲).     The characteristic of Nobukuni is almost the same as the characteristic of Hiromitsu and Akihiro.  Nobukuni also created Sun-nobi  Tanto like the one below which has a Hoso-suguha (narrow straight tempered line), Ko-Mokume (fine small burl),  Ko-maru Boshi (small round)

56 Nobukuni 1 Nobukuni4 56 Nobukuni 2

This is my sword.  Shodai Nobukuni (初代信國).  This is Juyo Token

Certification

number Juyo 3220,    Certification Juyo-Token

Wakizashi  Nobukuni,    31.4cm length, 0.3cm curvature, HirazukuriMitsumune (three-sided Mune ),  Sunnobi, Ji-hada is Wood grain and Jinie (Nie on the surface)Hamon is Chu-Suguha ( medium straight),  Front carving shows Bonji (Sanscrit), Sanko-Ken. The back side of the sword, engraving is Sanscrit and Hoko (pike).   Original Nakago.    The examination by the Nihon Bijutu Token Hozon Kyokai.  It is certified as Juyo-Token.  The Chairman Moritatu Hosokawa

 

 

20 | Nanboku-Cho Tanto(南北朝短刀)

18 Nanbokucho time line

The circle indicates the time we are discussing in this section

 

During the Nanboku-Cho Period, the type of Tanto called Hirazukuri-Kowakizashi-Sunnobi-Tanto was made.  Hirazukuri means a flat sword without the Yokote line and without Shinogi.  Ko-Wakizashi means a shorter sword.  Sun-Nobi Tanto means longer than standardThis is also called Enbun Jyoji Kowakizashi Tanto.  It is called this way because the majority of this type Tanto was forged around Enbun, Jyoji Imperial era.  In Japan, each time the Emperor changed, we changed the names of the era.  Enbun was from 1356 to 1361, Jyoji was from 1362 to 1368

 

20 Enbun Jyoji Kowakizashi Tanto

Shape (Sugata 姿) ——-It is common idea that the length of Tanto should be 1 shaku or less.  Shaku is an old Japanese measurement unit, which is very close to 1 foot.  8.5 sun (old Japanese measurement unit) is approximately 10 inches. This is the standard length Tanto called Jo-Sun Tanto.  Anything longer than Jo-Sun Tanto is called Sun-Nobi Tanto.  Anything shorter than Jo-Sun is called Sun-Zumari Tanto.  Most of the Nanboku-Cho Tanto is approximately 1 foot 2 inches long, therefore they are called Hirazukuri-Kowakizashi-Sun-Nobi Tanto Sakizori (curved outward at the top.  See the illustration above).  Wide width and thin body.  Fukura Kareru (No Fukura). Shin-no-Mune.  See the illustration below.

 

20 Fukura           20 Shin-no-Mune

Hi, Horimono (Goove and engraving , 彫刻) —– Groove on Mune side.  Bonji (Sanscrit, described in 17 Bonji Suken), Koshi-bi (Short groove) and Tokko- Tsuki Ken, or Tumetuki Ken (see below) appears.  Curving of Ken (dagger) is done wide and deep in the upper part, the lower part was curved shallow and narrower.  This is called Soshu-Bori (Soshu carving).

20 Tokko, tume Ken

Hamon (Tempered line) —– Narrow tempered area at the lower part, gradually grows wider as it goes up toward the top then similar look wide Hamon goes into the Boshi area.  Hamon in Kissaki area is Kaeri Fukashi (turn back deep) as the illustration below.  Coarse Nie. O-Midare (large irregular pattern).

 

20 Hitatsura
From Sano Museum Catalogue (permission granted)

Jihada —– Loose wood grain pattern called Itame.  Yubashiri (discussed in  17 Yubashiri, Chikei.jpg), Tobiyaki (Irregular patches of tempered metal) appears.  Crowded Tobiyaki is called Hitatsura (illustration above).

Nakago (Tang) —- Short Tanago-bara.  That means the belly of Japanese bitterling(fish) shape.

20 Tanago Bara

Sword-smiths during Nanboku-Cho Period Soshu Den(school)

Soshu Den ———————————————————-Hiromitu( 広光) Akihiro (秋広) Yamashiro Den ————————————————–Hasebe Kunishige (長谷部国重)   Bizen Den ——————————————————— Kanemitu (兼光) Chogi (長義 )

20 Hiromitu (Sano Museum)