The <b>Avro 508</b> displayed at the 1914 Olympia Aero Show
Unknown author<span style="display: none;">Unknown author</span>
1914
<i>Flight</i> magazine 21 March 1914 <a rel="nofollow" class="external autonumber" href="http://www.flightglobal.com/pdfarchive/view/1914/1914%20-%200296.html">[1]</a>