Antique Japanese <i>Yoroi doshi tanto</i> showing the flamboyant <i>ayasuji</i> type grain pattern or <i>hada</i> and the spine <i>mune</i> of the blade..
<a href="//commons.wikimedia.org/wiki/User:Samuraiantiqueworld" class="mw-redirect" title="User:Samuraiantiqueworld">Samuraiantiqueworld</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>