Ordering number: AS20316
Tanto in Shirasaya with double box. (NBTHK Tokubetsu Hozon Token)
Signature : Naniwa Ju Gassan Sadakatsu Kinsaku (kao)
Showa 12Nen 5 Gatsu Kichijiysu.
Explanation: This Tanto was made by Gassan Sadakatsu on lucky day of 1937.
Hakogaki (explanation written in the box):
Yamato Yamakuni Kogarasumaru Zo length:25,8cm Honorable
made. Gassan Sadakatsu Showa 12 Nen May lucky day.
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular
This sword belongs to Jyo Jyo saku ranking.
The blade was polished
Habaki: Solid Gold?
Blade length : 25.8 cm or 10.16 inches.
Sori :0.4cm or 0.16 inches.
Width at the hamachi : 2,3cm or 0,9 inches.
Kasane : 0,48 cm or 0.19inches.
The weight of the sword 175 grams.
Era: Syowa 12(1037)
Shape: Kogarasumaru Utsushi style. on both sides of the blade, engraved Bo-hi
. and Futasuji-Hi.
Jigane: Ayasugi-hada well grained with jinie attach and chikei work.
Hamon: Nie deki Suguha and turns back long Yakisage.
Special feature: It is a very rare masterpiece. Kogarasu Maru style sword which made by Gassan Sadakatsu. Gassan Sadakatsu (Eitaro Tsukiyama) was worked from the Taisho era to the early Showa era. He is one of the master craftsmen representing a Japanese swordsmith. Born in 1869 (Meiji 2). The son of the first Gassan Sadayoshi.
He produced many swords for the imperial family and swords dedicated to the shrine Ise Jingu.
From Aoi Art: Gassan Sadakatsu is a very dexterous swordsmith and produces all
kinds of works. The technique is of his father It is said that his skill exceeded his father’s skill, and from the latter half of the Meiji era, he also produced a substitute work for his
This is very difficult work of Kogarasu Maru as a household heirloom, the stem is still shiny without rust. I think it is preferable to have a raw blade(Ubuha) we recommend you to purchase it as your family treasure.
NBTHK Tokubetsu Hozon Token
Aoi Art estimation paper: whole Oshigata.