細節
A Hizen katana
Edo period (17th century), signed Hizen ju harima daijo Fujiwara Tadakuni
Sugata [configuration]: Shinogi-zukuri, iori-mune, shallow curve, chu-gissaki
Kitae [forging pattern]: Well-packed ko-itame with jinie
Hamon [tempering pattern]: Wide hamon of rounded choji with gunome interspersed with ko-notare, with ashi, yo, and sunagashi of deep nioi with much ko-nie
Boshi [tip]: Slight midare-komi with ko-maru kaeri and hakikake
Nakago [tang]: Ubu, osujigai file marks, two mekugi-ana one of which a shinobi-ana, shallow iriyamagata-jiri
Habaki [collar]: Double gold-clad copper
Nagasa [length of blade]: 69.6cm
The blade accompanied by a certificate of registration as a Juyo token (Important sword) no. 3110 issued by the Nihon Bijutsu Token Hozon Kyokai (Society for the Preservation of the Japanese Art Sword), 1969.4.26