Picture of Japanese battleship <a href="https://en.wikipedia.org/wiki/Japanese_battleship_Satsuma" class="extiw" title="en:Japanese battleship Satsuma">Satsuma</a>
Unknown author<span style="display: none;">Unknown author</span>; Photographer is assumed to be either a professional or an official photographer as it is a high-quality image unlikely to have been taken by an amateur. If taken by a professional photographer, it is assumed to have been published in one form or another shortly after being taken. No author was attributed in that book nor in any other source found.
<a rel="nofollow" class="external free" href="http://livedoor.blogimg.jp/irootoko_jr/imgs/7/e/7e73a39a.jpg">http://livedoor.blogimg.jp/irootoko_jr/imgs/7/e/7e73a39a.jpg</a> Scanned from: Shizuo Fukui, Japanese Naval Vessels Illustrated 1869-1945, v.1, Tokyo, 1974