A bare katana on a black-lacquered stand with gilt arabesques, seen through glass, with its red-scabbard mounting below.

SLIMHANNYA, CC BY-SA 4.0, via Wikimedia Commons · CC BY-SA 4.0

Sanbonsugi · high shinogi · jizō bōshi

Work and style

Long blades to be used with two hands, with a thin kasane and a high shinogi, with a flowing itame and the sanbonsugi, a pointed gunome repeated in threes.

On this page
  1. Kantei keys
  2. Measurements of two blades
  3. Gallery

Kantei keys

Sugata
Thin kasane, high shinogi and no hira-niku, from the first to the third generation. Katana longer than those of his time: many of about 2 shaku 3 sun, made for two hands, when the usual was the one-handed uchigatana of about 2 shaku. Also kowakizashi and tantō in hira-zukuri, and yari. The Japanese Sword Index gives late Mino two types of katana sugata, besides shōbu-zukuri, yari and naginata. AT
Jihada
Flowing itame (nagare), with masame in the shinogi-ji and a steel that turns whitish (shirake); by exception, a very tight ko-itame. The Japanese Sword Index adds a harder, darker jigane, with openings (ware). AT
Hamon
The sanbonsugi: a pointed gunome repeated in groups of three. In his hand it is irregular, with a low yaki that breaks here and there and a soft nioiguchi; in the later generations it becomes regular, “like a painting”, with a tighter nioiguchi. He rarely makes suguha, and even then with some pointed part. The Japanese Sword Index describes it as narrow, in nioi with nie in some places, with ko-midare of ko-gunome or ko-gunome togari. AT
Bōshi
The Japanese Wikipedia: always yori-jizō, gathered like the head of a Jizō. The Japanese Sword Index: midare-komi with a deep kaeri. AT
Nakago
Takanoha yasurime and a shallow kuri-jiri AT
Mei
兼元 (Kanemoto), in two characters, on the omote face AT

Measurements of two blades

BladeNagasaSoriWidth
Aoki Kanemoto70.6 cm1.51 cm3.1 cm at the base and 2.5 at the point
Blade at the Metropolitan in New York74.5 cm2.8 cm—

The Metropolitan catalogues it as a wakizashi blade; with that measurement it is a katana, and the label seems inaccurate.