Katana: Hizen Koku Ju Omi Daijo Fujiwara Tadahiro
Katana in Shirasaya(NBTHK Tokubetsu Hozon Paper)
Signature : Hizen Koku Ju Omi Daijo Fujiwara Tadahiro
Shinto: Jyo-Jyo saku ranking: Wazamono cutting test ranking: Hizen province.
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku
Jyo saku and regular saku)
This Omi Daijo Fujiwara Tadahiro belongs to Jyo-Jyo saku ranking.
The blade was polished.
Blade length : 69.6 cm or 27.4 inches.
Sori : 2.2 cm or 0.87 inches.
Mekugi : 1
Width at the hamachi : 3.12 cm or 1.22 inches.
Width at the Kissaki : 2.21 cm or 0.87 inches.
Kasane : 0.75 cm or 0.30 inches.
Era : Edo period Kanbun Era.
Shape : Wide, thick blade with long Kissaki having deep Sori.
Jitetsu : Koitame-hada well grained with Jinori attached. Fine Konukahada.
Hamon : Nie-deki Suguha with deep Nioikuchi, Ashi working well. Boshi deep Nioikuchi turning round.
Special feature : Tadahiro is known as a famous sword smith who rendered remarkable works to strengthen the basis of Hizen-to succeeding his father Tadayoshi the First. Tadayoshi was designated O-mi Daijo in 1641 at the age of 29. It is an accepted view that his golden age was circa Syoho to Keian era just after that. He didn't inherit his father's name Tadayoshi. He passed away at 1693, aged 80.
His sword was ranked at O-wazamono. It is said that his Jitetsu is the most beautiful among the Hizen-to.
NBTHK Tokubetsu Hozon Paper
Aoi Art estimation paper : whole Oshigata.