National Treasure

Long Sword (Tachi), Inscribed “Norikuni”
太刀 銘則国
Metalwork · Kamakura, 13th centuryKyoto NM
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Long Sword (Tachi) (Kiku Gosaku) With hairline chrysanthemum engraving Go-Toba(1180–1239) was the first emperor ever to ascend without receiving the three imperial regalia. The imperial sword was then lost at sea during the 1185 Battle of Dannoura. Go-Toba later became fascinated with swords, even quenching blades himself with help from imperial smiths (goban kaji). The chrysanthemum crest he used on these is now the imperial emblem.
— Museum description: Kyoto National Museum (CC BY 4.0), via ColBase / Japan Search.















