Kikkō Sadamune, 15th century uchigatana sword in Tokyo National Museum, Japan.
The Kikkō Sadamune displays a hexagonal tortoise shell pattern on its tang and features an irregular wave design along the blade surface.
Master swordsmith Hikoshiro Sadamune manufactured this sword around 1400, during a period of transition between the Kamakura and Nanbokuchō eras.
The sword represents the peak of Japanese metallurgy, demonstrating the technical refinement achieved by medieval craftsmen in steel manufacturing processes.
The Tokyo National Museum preserves this National Treasure in controlled atmospheric conditions to prevent deterioration of the metal structure.
The Tokugawa family branch from Owari Province presented this sword as a gift to Shogun Tsunayoshi in 1698 during the Genroku period.
Location: Taitō-ku
Inception: 14 century
Creator: Hikoshiro Sadamune
Address: 東京都台東区上野公園13-9
GPS coordinates: 35.71994,139.77560
Latest update: May 14, 2025 22:40
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