T425.  Iron sukashi tsuba signed Nobuiye.  6.5 x 6.8 x .55 cm at the raised rim.  The nakago hitsu-ana is.8 x 2.6 cm.  This is a classic Nobuiye design: tortoise shell carved plate with tortoise sukashi.  Bold tekkotsu on the rim and subtle tekkotsu on the plate.  Condition is excellent.  $245.