M237.  Heianjo zogan tsuba.  7.5 x 7.6 x .4 cm.  The nakago hitsu-ana is .8 x 2.8 cm.  There was a time in Japan when brass was more valuable than gold.  Often with these Heianjo much of the brass is missing.  This one, however, is nearly perfect; I see only one small spot of lost brass.  Condition is excellent.  $375.