Lot Essay
Asai Omi no kami Tadatsuna, a native of Himeji in Harima, migrated to Osaka. Among his pupils were Tadayuki, Nagatsuna, Munetsuna, Kanetsuna, Hirotsuna, and his son known as Ikkanshi Tadatsuna. The style of the school was mainly choji-midare, with the straight sloping Osaka-style yakidashi. In addition to the Ishido-style choji hamon Ikkanshi Tadatsuna is known for his Sukehiro-style hamon, as with this sword, and his skilful carving, especially of dragons.