D108.  Fine iron tsuba signed, Yukinori Saku”.  7.1 x 7.5 x 3.5 cm at the raised rim.  The nakago hitsu-ana is .8 x 2.6 cm.  Dates for Yukinori are 1800 to 1850; he worked in the Bushu Ito School.  I think this tsuba is special; I also think it is underpriced (it deserves to sell soon).  Very nicely carved and with a wonderful soft, chocolate brown patina: lots to like.  Condition is perfect.  $300.