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Insights into Japanese sword knowledge and culture
Hagire (edge cracks) are fatal blade defects. Missing them during appraisal or purchase can severely damage value. Learn causes, detection methods, and responses practically.
The Sengoku era produced master smiths but also countless kazuuchi mono — mass-produced swords arming footsoldiers. Explore Bizen and Mino production systems and their practical and historical significance.
From late Heian through Sengoku, temples maintained armed monk-warrior bands — sohei. Their use of naginata and swords significantly influenced medieval weapon development.
The 260-year Edo peace transformed Japanese swords from weapons to status symbols and art. Explore how this shift deepened smithing and appreciation culture.
The 1876 Haitōrei dealt a severe blow to Japanese swords. Explore the crisis of smith closures, sword disposal, and eventual revival in modern sword history.
Women of Sengoku were not mere victims of war. Explore their sword culture — protecting themselves with kaiken and defending castles with naginata — through historical examples.
Japan's four seasons can both protect and damage swords. Learn seasonal storage strategies for rainy season humidity, winter condensation, and summer temperature swings.
Protecting swords as assets requires insurance and formal valuation. Learn about movable property insurance eligibility, authentication bodies, and valuation principles.
Shinogi is the skeleton of the Japanese sword, with shapes across eras reflecting both combat performance and aesthetic sense. Decode blade personality through shinogi height, width, and groove relationships.
Sending a rusty or clouded sword for polishing is not just a technical question but an ethical decision about cultural preservation. Learn the criteria and modern polishers' dilemmas.
A practical guide to exporting Japanese swords internationally — covering Japanese Board of Education deregistration, export permits, and import regulations in the US, EU, UK, Australia, and Canada.
Soshu, Bizen, Mino, Yamato, Yamashiro — through the voices of modern swordsmiths carrying on each tradition, we explore the inheritance and evolution of craft and the life of a swordsmith today.