Katana is a slightly curved sword with length over 23 inches. Katana appears from Kamakura period (1185–1333) till 1876 (Meiji reforms) when the wearing samurai sword has been banned. Ha-edgeKissaki-tipShinogi-Ji-blocking surfaceHi-Blood grooveMune-back sectionHabaki-collarTsuba-guardTsuka-hiltMenuki-ornamentsMekugi-retaining pegKashira-pommel Saya-scabbardKojiri-saya tipKurigata-cord retainerSageo-cordKoi-guchi-saya mouth