Ordering Number: 23622
Kyushu Higo Dotanuki Kozukenosuke 九州肥後同田貫上野介
(Kiritsuke-Mei): Ichi 一
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular saku)
This sword belongs to Jo saku ranking.
habaki: Gold foiled double Habaki.
The blade was polished.
Blade length :69.7 cm or 27.44 in
Sori :1.4 cm or 0.55 in
Mekugi : 2
Width at the hamachi : 3.31 cm or 1.30 in
Width at the Kissaki : 2.50cm or 0.98 in
Kasane : 0.7 cm or 0.27 in
The weight of the sword 845 grams
Era: the late Muromachi period.
Shape : Wide and thick Katana with moderate curve.
Bo-hi is carved on both side of the blade.
Jigane: Itame hadad with whitish utsuri.
Hamon: Nie Deki, Suguha Hamon with Ko Ashi and Yo.
Boshi is Midarekomi and Hakikake style.
Special feature: Dotanuki school was active in the late Muromachi period with Kiyokuni and Masakuni as its two most prominent figures. Those using the name Dotanuki are Hyoby, Matahachi, and Uemon etc.
They all served Kiyomasa Kato as swordsmiths, but it is thought that their business was discontinued with the fall of the Kato family.
Toward the end of the Edo period, it is said that Yamato Kami Masakatsu, Hiromune father and son, and others reestablished their ancestral businesses.
From Aoi Art: This blade has a little Machiokuri, but still has good shape, that is similar to Keicho shinto style.
NBTHK Tokubetsu Hozon Token
Aoi Art estimation paper