A HIZEN KATANA
SIGNED HIZEN KUNI YOSHITADA AND DATED KIGEN NISEN ROPPYAKU NEN (1940)
Sugata [configuration]: honzukuri, iori-mune, even curve, chu-kissaki
Kitae [forging pattern]: ko-itame
Hamon [tempering pattern]: suguha with some nijuba, hotsure, and kuichigaiba of nioi with ko-nie
Boshi [tip]: apparently ko-maru
Nakago [tang]: ubu, file marks kiri, single mekugi-ana, ha-agari kurijiri
Habaki [collar]: single gold-clad copper
Nagasa [length of blade]: 68.6cm.
Koshirae [mounting]: gunto koshirae with black-lacquered metal-clad saya
A HIZEN KATANA
SIGNED HIZEN KUNI YOSHITADA AND DATED KIGEN NISEN ROPPYAKU NEN (1940)
Sugata [configuration]: honzukuri, iori-mune, even curve, chu-kissaki
Kitae [forging pattern]: ko-itame
Hamon [tempering pattern]: suguha with some nijuba, hotsure, and kuichigaiba of nioi with ko-nie
Boshi [tip]: apparently ko-maru
Nakago [tang]: ubu, file marks kiri, single mekugi-ana, ha-agari kurijiri
Habaki [collar]: single gold-clad copper
Nagasa [length of blade]: 68.6cm.
Koshirae [mounting]: gunto koshirae with black-lacquered metal-clad saya