T266.  Iron sukashi tsuba.  7.3 x 7.5 x .5 cm.  The nakago hitsu-ana is .8 x 2.65 cm.  Even without the visible fold lines on the rim, this would be a fine tsuba.  But, given the difficulty involved in leaving evidence of folding while leaving no defects in the plate, this one is special.  I like it a lot.  $350.