Wakizashi in Shirasaya. (NBTHK Tokubetsu Hozon Paper)
Signature : Yasutsugu Motte Nanbantetsu (3rd generation)
Oite Busyu Edo Saki No
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular saku)
This sword belongs to Jyo Saku ranking.
The blade was polished .
Habaki : Silver double habaki.
Blade length : 56.7 cm or 22.32 inches.
Sori : 0.3 cm or 0.11 inches.
Mekugi : 1
Width at the hamachi : 3.04 cm or 1.19 inches.
Width at the Kissaki : 2.2 cm or 0.86 inches.
Kasane : 0.67 cm or 0.26 inches.
Era : Edo period Kanbun era.
Shape : The blade is rather wide and regular thickness with small sori which is called Kanbun style.
Jitetsu : Itame had well grained with jinie attach and chikei work.
Hamon : Niedeki gunome midair with ash and boshi is midarekomi style.
Special feature : 2nd generation Yasutugu was called Umanosuke.
But at that time Succession problem occurred inside of the Shimosaka family.
So 3rd generation which succeeded this shimosaka family moved to Edo.
The sword which was made by Umanosuke is called Edo chi and succeeded 3rd generation
Echizen is called Echizen chi. Generaly speaking Edo saki is much better than Echizen chi.
Yasutsugu was protected by Tokugawa family and permitted to engrave Tokugawa family crest on the tang of the sword.
And this style continued until late Edo period.
This sword is rather long wakizashi and good blade and received NBTHK Tokubetsu hozon paper already.
NBTHK Tokubetsu Hozon Paper
Aoi Art estimation paper : whole Oshigata.