Japanese Arisaka Rifle Bayonet, mfg.Hikari Seiki Seisakusho Arsenal, WWII.  No serial number.  Good condition.  15 1/2" unfinished blade has sharpening marks and age spotting.  Curved crossguard.  Button works fine.  Wood grips are in very good condition.  No dents in the scabbard and age and surface wear. This one looks like it's been there.