The circle represents the time we are discussing in this section
Beginning of Soshu style
After the Mongolian invasion, that is the later part of Kamakura period, a new style started to emerge. Kamakura area became prosperous under the rule of Hojo(北条). Many swords smiths moved to Kamakura. Fukuoka Ichimonji (福岡一文字)Sukezane, Kunimune group moved from Bizen. Kunituna and his group moved from Yamashiro. They are the origin of Soshu school (相州). A star sword smith, Goro-Nyudo-Masamune (五郎入道正宗) appeared during this time.
Shape (Sugata 姿)——-long Kissaki (O-kissaki 大切先). Top of Hi ends lower. Hamaguri- ha was eliminated (became thinner). Original length was 3 feet or but mostly shortened later time to 2 feet and 3 or 4 inches. This is called O-Suriage(大磨上)
Hamon——————–You see narrow Hamon and wide Hamon.
Narrow Hamon ——-Suguha (straight) mixed with Ko-choji (small clove) and Ko-gumome (continuous half circle like). Small Nie base. (First drawing)
Wide Hamon———–Notare (wavy) midare, O-gunome. Nie base. Ashi-iri (short line goes inwar Inazuma (lightning- like line), Kinsuji (gold line like) appears on tempered line. But Inazuma and Kinsuji requires trained eyes to detect. It is hard to see for beginners.(Second drawing)
Boshi —————The Hamon from the lower part of the body of the sword continues into Boshi area then turn back a little or Yakizume. You may also see O-maru (large round), Ko-maru (small round), Kaen (flame like) and Nie-kuzure. Refer Chapter 13 for Yakizume and Kaen.
Jihada or Jitetu (between Shinogi and tempered line)—— Strong Ji-nie (地沸), that is a sand-like small dots appears other than the tempered line. Yubashiri (cluster of Ji-nie), Kinsuji (lined Nie looks like golden line), Inazuma (lightning like irregular line) and Chikei (similar to Kinsuji appears on Ji-hada).
Late Kamakura Period Soshu School Sword Smiths
From Bizen—————— Fukuoka Ichimonji Sukezane, Kunimune moved to Kamakura From Yamashiro ————————— Touroku- Sakon- Kunituna moved to Kamakura
Those above three are the beginning of Kamakura swordsmiths. Later,Tosaburo-Yukimitu and his son, famous Goro-Nyudo-Masamune appeared.
Those who made Soshu Style in the other province
From Yamashiro (山城)———–Rai Kunitsugu (来国次), Hasebe Kunishige (長谷部国重)From Ettshu (越中) province ——————-Gou- no-Yoshihiro (郷義弘), Norishige (則重)From Mino (美濃) province ——————————————–Kaneuji (兼氏), Kinjyu (金重)From Chikuzen (筑前) province ————————————————–Samoji (左文字)
Goro-Nyudo-Masamune(正宗) Sano Museum Catalogue (佐野美術館図録) Permission granted *Because Masamune lived in Kamakura which is a beach town, he was inspired by ocean wave. Therefore his Hamon sometimes looks like wave design.