M219.  Iron sukashi tsuba with shakudo fukurin.  7.2 x 7.4 x .4 cm.  The nakago hitsu-ana is.8 x 2.8 cm.  Echizen Akao, according to a knowledgeable former owner: crescent moon with clouds over water.  Deep patina on the iron and a rubbed patina on the fukurin.  There is a crack in the rim (just south of east in my 1st picture); otherwise condition is excellent.  $175.