Tanago bara – Study of Japanese Sword

This chapter is a continued part of chapter 19. Please read 19 |Nanboku-Cho Period Tanto（南北朝短刀), before reading this section.

0-timeline - size 24 Nanboku-cho

The red circle above indicates the time we discuss in this section

20 Enbun Jyoji Kowakizashi Tanto

The drawing above is a typical shape of the Nanboku-cho time Tanto. This drawing was in chapter 19. This drawing exaggerates the form of the Enbun Joji Kowakizashi tanto. At the end of Chapter 19 | Nanboku-Cho Tanto（南北朝短刀）, there is a list of swordsmiths’ names in the period. Hiromitsu (広光) and Akihiro (秋広) represent the most common characteristics of Nanboku-cho Tanto.

56 cropped Hiromitu photo 20 Hitatsura

Hiromitsu From Sano Museum Catalogue (permission to use granted granted)

Enbun Joji Ko-wakizashi Tanto is also called Sun-nobi Tanto (>10 inches) because the length is longer than standard size (approx. 10 inches) Tanto. The top part of the Tanto bends outward slightly. This type of shape is called Sakizori.

Characteristics of Hiromitu (広光) and Akihiro (秋広)

Shape———————— Usually, one foot and one to two inches long (Sun-nobi). Wide width. The blade is thin. Sakizori.
Hamon ———————-Wide Hamon and narrow Hamon are mixed. Hamon around Yakidashi (right above Machi) area is narrow, but it gets wider gradually as it goes up. Hamon around the Fukura area is the showiest. Mainly Nie. Sunagashi, Kinsuji, Gunome, Umanoha-midare (horse teeth shape Hamon), or Hitatsura appear (above drawing).
Boshi———–Irregular, unevenly tempered. Hamon covers almost entire Boshi. Deep turn back.
Jihada ———————————————————Wood-grained pattern
Nakago —————–Tanago-bara shape. Refer to 19 Nanboku-cho Period Tanto.

Nobukuni (Below is my sword)

Shodai Nobukuni (the first generation Nobukuni) was a student of Sadamune. He was one of the Sadamune San Tetsu (貞宗三哲, Sadamune’s top three students). Nobukuni’s characteristics were similar to those of Hiromitsu’s and Akihiro’s described above. Nobukuni also created Sun-nobi Tanto. The sword below has a Hoso-suguha, Ko-mokume (small burl pattern), Ko-maru Boshi (small round).

56 Nobukuni 1 Nobukuni4

56 Nobukuni 2

This is the certification of my sword. Shodai Nobukuni (初代信國). Juyo Token (重要刀剣)

Certification

number Juyo 3220, Certification Juyo-Token

Wakizashi: Nobukuni (信国), 31.4cm length, 0.3cm curvature, Hirazukuri, Mitsumune (three-sided Mune), Sun-nobi, Ji-hada is wood grain and Ji-nie (nie on the surface between Shinogi and Hamon), Hamon is Chu-suguha (medium straight), Front carving shows Bonji (Sanscrit), Sanko-ken, back engraving is Bonji and Hoko (pike). Original Nakago. The examination by the Nihon Bijutu Token Hozon Kyokai. It is certified as Juyo Token. The Chairman Moritatu Hosokawa. Showa 45 June 1 (1970 June 1)

The circle indicates the time we discuss in this section

During the Nanboku-cho period, a type of Tanto called Hirazukuri Ko-wakizashi Sun-nobi Tanto was made. Hirazukuri means a flat sword without the Yokote line and Shinogi. Ko-wakizashi means a shorter sword. Sun-nobi Tanto means longer than standard Tanto. This is also called Enbun Jyoji Ko-wakizashi Tanto. It is called this way because majority of this type of Tanto were forged around Enbun and Jyoji imperial era. In Japan, a new imperial period starts when a new emperor ascends to the throne. The Enbun era was from 1356 to 1361, and the Jyoji period was from 1362 to 1368.

20 Enbun Jyoji Kowakizashi Tanto

Sugata (姿: shape) ——- The length of a standard size Tanto is approx. one Shaku. Shaku is an old Japanese measurement unit for length and, one Shaku is very close to 1 foot.

8.5 Sun (the Sun is another old Japanese measurement unit for length) is approximately 10 inches. Ten inches is the standard size Tanto called Josun Tanto. Anything longer than Josun Tanto is called Sun-nobi Tanto. Anything shorter than Josun is called Sun-zumari Tanto.

Most of the Nanboku-cho tantos are longer than Josun Tanto, approximately 1 foot 2 inches long. Therefore they are called Hirazukuri Ko-wakizashi Sun-nobi Tanto.

Saki-zori (curved outward at the top. See the illustration above). Wide width and thin body. Fukura Kareru (no Fukura means less arc). Shin-no-mune. See the drawing below.

20 Fukura 20 Shin-no-Mune

Hi, (樋: Grooves) and Horimono (彫り物: Engraving) —- A groove or grooves on the Mune side. Bonji (Sanscrit, described in Chapter 16 Late Kamakura Period (Early Soshu-Den Tanto 鎌倉末短刀, Koshi-bi (Short groove), Tumetuki Ken, Tokko-tsuki Ken (see below) appear. Ken (dagger) is curved widely and deeply in the upper part and shallower and narrower in the lower part. This is called Soshu-bori (Soshu stule carving).

20 Tokko, tume Ken

Hamon (刃: Tempered line) —– The narrowly tempered at the lower part gradually becomes wider toward the top. Then a similar wide Hamon goes into the Boshi area. Hamon in the Kissaki area is Kaeri-fukashi (turn back deep). See the illustration below. Coarse Nie. O-midare (large irregular Hamon pattern).

20 Hitatsura

From Sano Museum Catalogue

Ji-hada (地肌: Area between shinogi-ji and tempered line)——— Loose wood grain pattern called Itame. Yubashiri (refer Chapter 16| Late Kamakura period: Early Soshu-Den Tanto (鎌倉末短刀)), Tobiyaki (Irregular patchy tempered spot) appear. Crowded (or busy) Tobiyaki is called Hitatsura (drawing above).

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

20 Tanago Bara

Tanto Sword-smiths during Nanboku-Cho Period

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 )

Compton Hiromitsu Soshu Hiromitsu “Nippon-To Art Sword of Japan “ The Walter A. Compton Collection

Tag: Tanago bara

53| Part 2 of — 19 Nanboku-cho Period Tanto (南北朝短刀)

19 | Nanboku-Cho Period Tanto（南北朝短刀）

The circle indicates the time we discuss in this section