An old monoxylons dedicated to Shinzan Jinja or Shinzan Shrine in Oga City,Akita Prefecture,Japan. Its annual rings show the center of gravity of the timber which gives the boat good balance on water.
<table class="licensetpl" style="display:none"><tbody><tr><td><span class="licensetpl_short">Public domain</span><span class="licensetpl_long">Public domain</span><span class="licensetpl_link_req">false</span><span class="licensetpl_attr_req">false</span>
</td></tr></tbody></table><table style="width:100%; clear:both; margin:0.5em auto; background-color:#f7f8ff; border:2px solid #8888aa; direction: ltr; border-spacing: 8px; padding: 0px;" class="layouttemplate mw-content-ltr" lang="en"><tbody><tr><td><img alt="Public domain" src="https://upload.wikimedia.org/wikipedia/commons/thumb/6/62/PD-icon.svg/64px-PD-icon.svg.png" decoding="async" title="Public domain" width="64" height="64" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/6/62/PD-icon.svg/96px-PD-icon.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/6/62/PD-icon.svg/128px-PD-icon.svg.png 2x" data-file-width="196" data-file-height="196"></td>
<td>I, the copyright holder of this work, release this work into the <b><a href="https://en.wikipedia.org/wiki/en:public_domain" class="extiw" title="w:en:public domain">public domain</a></b>. This applies worldwide.<br><small>In some countries this may not be legally possible; if so:</small><br><i>I grant anyone the right to use this work <b>for any purpose</b>, without any conditions, unless such conditions are required by law.</i>
</td></tr></tbody></table>
<a href="//commons.wikimedia.org/w/index.php?title=User:%E3%82%A6%E3%82%A3%E3%82%AD%E5%A4%AA%E9%83%8E&amp;action=edit&amp;redlink=1" class="new" title="User:ウィキ太郎 (page does not exist)">ウィキ太郎 Wiki Taro</a>
<span class="int-own-work" lang="en">Own work</span>