| Product No. WA-0831 加藤長運斎綱俊 | |
|---|---|
| Mei |
Kato Chounsai Tsunatoshi Back: On a Day in February 1839, the 10th Year of Tenpo. Mune-mei: Owned by Goto Noriyoshi |
| Shape | Hirazukuri Iorimune |
| Era | Late Edo Period |
| Length |
42 cm 16.5 in |
| Sori (curvature) |
0.6 cm 0.2 in |
| Motohaba |
3.5 cm 1.4 in |
| Munekasane |
1 cm 0.4 in |
| Status | Tokubetsu Hozon Token |
| Certification Date | August 22, 2025 |
| Registration Authority | Ibaraki Prefecture |
| Registration Date | July 25, 1967 |
| Jihada (Metal pattern) | Koitame |
| Hamon (Temper line) | Toran-midare with Tama-yaki |
| Bōshi (Point / Tip) | Sugu komaru long turn |
| Nakago (Tang) | Ubu, Sujikai with kesho file and shallow kurijiri end |
| Mekugiana (Rivet holes) | 1 |
| Habaki | Copper base gold foil with koshi-yujo file habaki |
| Mountings | Koshirae-tsuki |
| Koshirae | Wakizashi koshirae with a Aogai-mijin-nuri, crushed mother-of-pearl inlay saya |
| Koshirae Length |
64.8 cm 25.5 in |
| Tsuka Length |
15.0 cm 5.9 in |
| Tsuba | Dragon Rising from the Waves |
| Menuki | Kirin, Legendary Animal |
| Fuchigashira | Plain, Iron |
| Kozuka | Dragon and Clouds |
| Other details | Iron wrapped black silk tsumami-maki style tsuka |
Price |
800,000 JPY |
| Kato Tsunatoshi [加藤綱俊] (first-generation Chōunsai [長運斎]) was born in 1798 as the second son of Kato Kunihide [加藤国秀] of Yonezawa in Oshu, and the younger brother of Kato Tsunahide [加藤綱英]. He became a retainer swordsmith for the Uesugi clan, lords of the Yonezawa domain in Dewa province, alongside his elder brother. Around 1823, he moved to Edo and resided at the Uesugi family's secondary residence in Azabu, where he forged swords. He studied under Suishinshi Masahide [水心子正秀] and used the go-name Chōunsai. In 1854 (Ansei 1), he passed the name Chōunsai to his son Koretoshi [是俊] and changed his own name to Chōjūsai [長寿斎] in his later years. He established his own school and passed away in 1863 (Bunkyū 3) at the age of 66. He left behind fine works in the Bizen-den featuring a chōji-style pattern, and was reputed as the foremost master of the Bizen-den at the time. He further gained renown for his skill in reproducing Tsuda Sukehiro's ［津田助廣］tōran hamon. This wakizashi features tōran-style hamon striking tamayaki pattern on both sides. It was a masterpiece forged by Tsunatoshi at age 41 in 1839 (Tenpō 10). The owner's inscription at the mune, Goto Noriyoshi ［後藤則贇］, left behind a document from 1840 (Tenpō 11) transcribing the “Jūjutsu Shugyō Mokuroku ［柔術修行目録］” (Catalog of Jujutsu Training) by Shibukawa Tokihide ［渋皮時英］, which details the secrets of jujutsu and swordsmanship. The koshirae feature a sturdy, combat-oriented with a Aogai-mijin-nuri, crushed mother-of-pearl inlay saya with iron covering the tsuka handle instead of shark skin. It passed the Tokubetsu Hozon Token shinsa in June 2025. |
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