Ordering number : 13373
Katana in Shirasaya(NBTHK Hozon Paper)
Signature: Musashi Daijyo Sakon Korekazu (１st generation)
The blade was polished.
habaki:syakudo single habaki.
Blade length : 69.6cm or 27.41inches.
Sori : 1.5cm or 0.59inches.
Width at the hamachi : 2.9cm or 1.14inches.
Width at the Kissaki : 2cm or 0.78inches.
Kasane : 0.68cm or 0.27inches.
Era : Keian era Edo period.
Shape : The blade is about 15cm suriage and Machiokuri nakago.
Jitetsu :Itame had and mokume had well grained with clear Utsuri appear on the Ji.
Hamon : From the Hamachi area, Choji midair and then suguha with komidare hamon with ashi, Yo work.
Special feature : Musashi Daijyo Sakon Korekazu １st generation was working at Keian era early Edo period.
He always making Ichimonji style active Choji midair hamon.
At that period, in Edo, there are many sword makers like Mitsuhira,
Tsunemitsu,Korekazu and other sword makers were making Ichimonji style Jigane and hamon.
The style of Ichimonji of the Korekazu is very nice Choji midair hamon
but the shindig ji is massage had and generally Kanbun style so it
is easy to understand his subject.
His school continued 7th generation Korekazu(Ishido Korekazu).
From Aoi Art:Musashi Daijyo Sakon Korekazu is Oumi ishido school and
moved to Edo and made Ichimonji style swords.
I think this sword looks like Nagamitsu utsushi.
From the Hamachi,cyoji midare and continyed to Monouchi area and
then suguha style to Kissaki area and then sansaku style boshi which style is Nagamitsu.
The sword remind us Koto Ichimonji sword.
NBTHK Hozon Paper
Aoi Art estimation paper : whole Oshigata.