The blade probably 17th century, later mounted as an aikuchi
The blade of hirazukuri form, gunome-ha of nie and indistinct itame-hada, the ubu-nakago with one mekugi-ana, unsigned; Koshirae: black lacquered scabbard with silver lacquered kiku on water; silver fuchi delicately engraved with a flying insect and grasses, unsigned.
The blade 18.8cm (7 3/8in) long.
Sold for £2,640 (€3,109) inc. premium