T379.  Onin tsuba, iron and brass ten zogan.  7.2 x 7.2 x .25 cm.  The nakago hitsu-ana is .8 x 2.8 cm.  No doubt this is Onin and I think it is early because of the thin plate.  This used to have a larger diameter but it has been cut down (pity) and some of the ten zogan is missing.  The sukashi is a clove.  $135.