unsigned attributed to NANBAN
Sumikiri-Mokko cross rectangular shape, Iron ground, Gold inlay in Nunome-zougan style, Square Mimi edge in Suki-Nokoshi engraving, Both Hitsu-ana punches
82.1mm x 82.0mm 5.0mm thick (Seppa-dai)
NBTHK(Tokubetsu Kicho Tousougu) certificate