Blade length : 349mm/13.75"
Curvature : 7mm/0.28"
Total length : 510mm/20"
Motohaba : 30.8mm/1.21"
Sakihaba : 23.7mm/0.93"
Motokasane : 5.2mm/0.2"
Sakikasane : 4.4mm/0.17"
Blade Weight : 288g
Total Weight : 519g
Kaifu school was a name of swordsmith group who worked around Kaifu gô, Kaifu county, in Awa province (current Kainan-chô town, or Kaifu-chô town or Shishikui-chô town, Kaifu county, Tokushima prefecture). It was defence line place for Tosa county, very south end of Awa province. They confronted against Tosa province. The occurrence of Kaifu school was very end of Yoshino-chô dynasty (late Nan-boku-chô dynasty), then they flourished. Later on, during Shintô era, the number of swordsmith decreased, however, they continued till Shin-shin-tô era. The representing swordsmith of kaifuschool, Ujiyoshi and his later generations, they created the swords even in Tosa province as well around Keiô era. This swords was seemed to be created during Shin-shin-tô era. Such kata-kiri-ha tsukuri was their expertise as well.
