<a href="//commons.wikimedia.org/wiki/Category:JS_Kokury%C5%AB_(SS-506)" title="Category:JS Kokuryū (SS-506)">SS-506 こくりゅう</a>
Kaijō Jieitai （<a rel="nofollow" class="external text" href="http://www.mod.go.jp/msdf/">海上自衛隊</a> / Japan Maritime Self-Defense Force）
CC BY 4.0
<a rel="nofollow" class="external free" href="http://www.mod.go.jp/msdf/formal/gallery/ships/ss/soryuu/501.html">http://www.mod.go.jp/msdf/formal/gallery/ships/ss/soryuu/501.html</a>