TSUNAHIRO(綱広) was a Japanese swordsmith active in Sagami province.
- Muromachi period.
- Tsunaie(綱家)*elderly brother of the smith.
Shape : Wide sword with a large KISSAKI(切先).
Hada : Fine-grained MOKUME-HADA(杢目肌).
Hamon : NIE-DEKI(沸出来) less apparent, HITATSURA(皆焼) .
Boshi : KO-MARU(小丸), MIDARE-KOMI(乱れ込み), ICHIMAI BOSHI(一枚帽子), short KAERI(返り).
- The lineage of Tsunahiro remains uncertain. One theory says he was a son of Gisuke while the other says he was adopted by Hirotsugu(広次).
- His first smith name was Masahiro(正広) but he changed it to Tsunahiro when he was given the Kanji character of Tsuna”綱” from Hojo Ujitsuna(北条氏綱). While he was working under Hojo Ujitsuna in Odawara area, he influenced the smith there a lot.
- His name had been succeeded through many generations until the Meiji period. Among the generations, the smiths, who were active during the Keicho and the Manji era, left highly-qualified swords. Especially the 5th generation Tsunahiro was considered the teacher of KOTETSU(虎徹).