The circle indicates the time we are discussing in this section
The type of Tanto during Nanboku-Cho Period was called Hirazukuri-Kowakizashi-Sunnobi- Tanto. Hirazukuri means flat sword without Yokote line and without Shinogi. Ko-Wakizashi means shorter sword. Sunnnobi Tanto means longer Tanto. This is called Enbun Jyoji Kowakizashi Tanto. Because the majority of this type of shape was made around Enbun, Jyoji Imperial era. Each time the Emperor changed, Japan changed the names of the era. Enbun was from 1356 to 1361, Jyoji was from 1362 to 1368.
Shape (Sugata 姿) ——-Usually approximately 1 foot 1 or 1 foot 2 inches long. Sakizori (curved at the top. Look at the illustration above). Wide width and thin body. Fukura Kareru (No Fukura). Shin-no-Mune.
Hi, Horimono (Goove and engraving 樋, 彫刻) —– Groove on Mune side. Bonji (sanscrit, refer 17 Bonji Suken), Koshi-bi (Short goove) and Tokko- tsuki Ken, or Tumetuki Ken (see below). Ken (spear) was curved wide and deep at the upper part, lower part was curved shallow and narrower. This is called Soshu-bori.
Hamon (Tempered line) —– Narrow tempered area at the lower part, it gradually grows wider as it goes up higher then it becomes Bodhi design. Hamon in Kissaki area is Kaeri Fukashi (turn back deep) as illustration below. Coarse Nie. O-Midare (large irregular pattern).
Jitetsu or Jihada —– Loose wood grain pattern called Itame. Yubashiri (refer 17 Yubashiri, Chikei.jpg), Tobiyaki (Irregular patches of tempered metal) appears. Crowded Tobiyaki is called Hitatsura (illustration above).
Nakago (Tang) —- Short 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 ) Arima Province ——————————————————Hojoji Kunimitsu (法城寺国光 )