Order number : 17112
Wakizashi(Sunnobi Tanto) in Shirasaya with Koshirae.(NBTHK Hozon Paper)
Signature :Bizen Osafune Yokoyama Sukekane Saku
Keio Gan Nen 8 Gatsu Tomonari 58 Dai Mago
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular saku)
This sword belongs to jyo Jyo saku ranking.
The blade was polished.
Blade length : 34.2 cm or 13.46inches.
Sori :0.4cm or 0.16inches.
Mekugi : 1
Width at the hamachi : 3.15cm or1.24 inches.
Kasane : 0.71 cm or 0.28inches.
Era :Late Edo period.(1865)
Shape : The blade is Hirauchi style sunnobi Tanto.
Jigane :Koitame hada well grained with jinie attach beautiful Muji style Jigane.
Hamon :Nioi deki suguha from the hamachi and then cyoji midare hamon with ashi, Yo．Boshi is round shape.
Special feature: Yokoyama Sukekane was a swordsmith of Bizen province. He was an adopted son or a pupil of Yokoyama Sukenori.
This katana is a revival of old Bizen style.
He added Tomonari 58 Dai Mago to the signature meaning
that he was a descendant of Tomonari.
From the excellent workmanship, it is entirely convincing.
It is common knowledge that Tomonari of Bizen province,
Yasutsuna of Hoki province and Sanjo Munechika
of Yamashiro province are the three oldest
master-swordsmiths in the Japanese sword world.
Saya : Brown color Ishime-Ji Saya.
Tsuba : Mokko shape, wood? Tsuba with black Urushi lacquer
and gold color family crest.
Menuki : Shakudo, butterfly is engraved with gold color.
Fuchi: black horn.
Kashira: lobster is engraved with gold color.
From Aoi Art:At the end of Edo period, many sword makers were making Nioideki Cyuji midare hamon.
Yokoyama Cyoji midare hamon, his student Sukakane made a lot of this type of Hamon and also educated many student and asked to make this Cyoji midare hamon.
So his stdent like Sukeyoshi, suketoshi Sukenao are making this kind of hamon. It is very easy to distinguish his or his family’s hamon.
This blade is healthy typical Sukekane hamon.
NBTHk Hozon Token.
Aoi Art estimation paper : whole Oshigata.