"Sketch showing the Austrian Ago Sea-Pursuit flying-boat "A-25," in-flight." (Original caption)
(According to information made available after the end of the First World War, the aircraft's actual designation was <a href="https://en.wikipedia.org/wiki/en:Hansa-Brandenburg_CC" class="extiw" title="w:en:Hansa-Brandenburg CC">Hansa-Brandenburg CC</a>).
Unknown author<span style="display: none;">Unknown author</span>
Before January 17, 1918
<i><a rel="nofollow" class="external text" href="http://www.flightglobal.com/pdfarchive/view/1918/1918%20-%200071.html">From other lands – Austrian Ago and Lohner flying boats</a></i>. Flight, 17 January 1918, <b>10</b> (3)