El acorazado Bismarck durante la batalla del estrecho de Dinamarca
Unknown author<span style="display: none;">Unknown author</span>
CC BY-SA 3.0
Naval History and Heritage Command <a rel="nofollow" class="external autonumber" href="http://www.history.navy.mil/our-collections/photography/numerical-list-of-images/nhhc-series/nh-series/NH-69000/NH-69729.html">[1]</a>