T431.  San mai (3 layer) tsuba.  7 x 7.5 x .35 cm at the fukurin.  The nakago hitsu-ana is .9 x 3 cm.  This tsuba is likely copper on the inside and alloys of copper for the face plates and fukurin.  Other than the evidence of use (a few shallow dings and adjustment to the nakago ana) condition is great.  I’m showing you photos taken with both direct and indirect natural light (it is devilishly difficult to get the color right on these kinko pieces).  $175.