Q134. Iron Sukashi Tsuba Signed & with Gold Inlay

Q134.  Sukashi tsuba in iron with gold nunome.  6.6 x 7.1 x .4 cm.  The nakago hitsu-ana is .8 x 2.6 cm.  This is signed, Kofu no Ju Tatsunao.  The tsuba comes in a box that has a picture of a very similar tsuba by the same smith, along with a lengthy description (which I haven't had translated) taped inside the lid.  There are numerous tekkotsu on the rim.  Condition is great.  $275.