A TANTO BLADE, hirazukuri, kasane atsui, iorimune and musori, with a small rendai horimono on omote, itame-mokume hada and rather pointed gonome hamon with sparse nie, Komaru boshi and ubu nakago, inscribed Masamune but probably Seki School, 18th - 19th century, 29.8 cm long, in shirasaya