Katana in Shirasaya(NBTHK Tokubetsu Hozon paper)
Signature : Hizen Koku Junin Minamoto Tadayoshi(1st)
Shinto: Saijo saku: Saijo Owazamono: Hizen province.
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku
Jyo saku and regular saku)
This Hizen Koku Junin Minamoto Tadayoshi belongs to Jyojyo saku ranking.
Habaki: Gold foiled double Habaki.
The blade was polished by high ranking polisher.
Blade length : 68.93 cm or 27.13 inches.
Sori : 1.8 cm or 0.70 inches.
Mekugi : 2
Width at the hamachi : 3.21 cm or 1.26 inches.
Width at the Kissaki : 2.18 cm or 0.85 inches.
Kasane : 0.73 cm or 0.28 inches.
Era : Edo period
Shape : Rather wide and thick blade with nice Sori.
Jitetsu :Ko-Itame Hada well grained with Jinie attach. It is beautiful Konuka Hada.
There are Utsuri.
Hamon : Nie Deki, Suguha base with Notare and Ko-Ashi.
There are double Ha. Boshi is Midarekomi double Ha Yakizume style.
Special feature : First generation of Tadayoshi engraved the 5 characters Kanji in his early days.
After that his name to Junin Tadayoshi saku.
And then, Hizen koku Juni Minamoto Tadayoshi and Musashi Daijo Tadahiro.
In his latest year, his name to Hizen koku Ju Fujiwara Tadahiro.
This blade does not have the signature “作 saku”.
If the blade has the signature “源 Minamoto”, in that case he do not engraved “作 saku”.
This blade is highly valued in first generation of Tadayoshi.
The generation of Junin Tadayoshi, he made the calm blade which looks like Shizu.
This blade has nice Utsuri, the Jigane makes feel strongly.
This blade is masterpiece Shinto Saijyo saku and Saijyo Owazamono.
NBTHK Tokubetsu Hozon paper
Aoi Art estimation paper : whole Oshigata.