Katana in Shirasaya (NBTHK Tokubetsu Hozon paper)
Signature : Mumei (Shikkake)
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular saku)
This sword belongs to Jyojyo Saku ranking.
The blade was polished.
Habaki : gold foiled single Habaki.
Blade length : 71.5 cm or 28.14 inches.
Sori : 1.6 cm or 0.62 inches.
Mekugi : 3
Width at the hamachi : 2.83 cm or 1.11 inches.
Width at the Kissaki : 2.16 cm or 0.85 inches.
Kasane : 0.68 cm or 0.26 inches.
Era : Late Kamakura period.
Shape : Regular size Katana with rather large Sori.
The nice shape Osuriage Mumei Katana.
Jigane : Itame Hada and Mokume Hada well grained with Jinie attach.
There are Utsuri.
Hamon : Nie Deki, Suguha base with Ko Gunome Midare.
There are many Ko-Ashi. In Ha, there are Sunagashi and Kinsuji.
Boshi likes Kaen Hakikake style.
Special feature: Shikkake School of Yamato province prospered present Tenri City in Nara pref. The name Shikkake was from Shikkake-ishi, the stone pedestal settling down the portable shrine to take a rest
on the way of religious services.
The jitetsu of this sword is extremely fine that has something in common
with Taima School. It satietes the collector’s interest.
Five principal swordsmith schools prospered in Yamato province:
Tegai, Shikkake, Taema, Senjuin and Hosho. Norinaga is thought
as the substantial founder of Shikakke school. Dated tanto in 1319,
the third year of Bunpo era in late Kamakura period still survive at the age of 69.
Counting backward, Norinaga was born in 1270, the seventh year
of Bunei era in Kamakura period. Later generations Norinaga forged sword to the Muromachi period.
Distinctly rose shinogi-suji, wide shinogi-haba, streamlike pattern
of itame-hada and suguha-hamon are characteristics common to
all Yamato province. The workmanship of Shikkake School shows
traditional Yamato style. Ranged and conspicious ko-gunome is an individuality of Shikkake.
This blade’s Jigane is so nice. The mixture of Itame Hada and Mokume Hada with Chikei and Utsuri.
The Hamon is typical Shikkake Suguha base with Gunome Midare.
In Ha, there are many Sunagashi and Kinsuji. Boshi is Hakikake Kaen Fu.
NBTHK Tokubetsu Hozon paper
Aoi Art estimation paper : whole Oshigata.