(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular saku)
This Tadayoshi (Not guarantee) belongs to regular saku ranking.
The blade was polished.
Blade length : 31.0 cm or 12.20 inches.
Sori : 0.5 cm or 0.19 inches.
Mekugi : 2
Width at the hamachi : 2.66 cm or 1.04 inches.
Width at the Kissaki : 2.29 cm or 0.90 inches.
Kasane : 0.70 cm or 0.27 inches.
Era : Late Muromachi period.
Shape : Wide and thick Sunnobi Tanto.
Jitetsu : There are mixture of Itame Hada and Oohada. Masanagare Hadatachi style.
Hamon : Nie Deki, Ko-Gunome Midare with Ashi.
Boshi is Komaru round shape.
Special feature : There is a signature Tadayoshi, but this signature is not genuin.
Tsuba : Iron Hamidashi Tsuba.
Fuchi : Brass, person is engraved with gold color. Kashira : Black horn.
Saya : Aogai Chirashi Fu(blue shell) Kawari Nuri Saya.
Menuki : Shakudo, flower is engraved with gold color.