Katana antica carta giapponese Mumei (Ietsugu) periodo Muromachi NBTHK hozon
Kashu Ietsugu is a swordsmith who follows the tradition of Sanekage, a disciple of Ecchu Norishige. The first Ietsugu was a swordsmith in the Onin era, and is said to be the son of Kunitsugu, a disciple of Sanekage.