Photograph of a <a href="https://en.wikipedia.org/wiki/BL_6_inch_80_pounder_gun" class="extiw" title="en:BL 6 inch 80 pounder gun">BL 6-inch 80-pounder gun</a> from <a href="https://en.wikipedia.org/wiki/HMAS_Protector_(1884)" class="extiw" title="en:HMAS Protector (1884)">HMAS Protector</a>, outside the navy Cadets Depot in <a href="https://en.wikipedia.org/wiki/Birkenhead,_South_Australia" class="extiw" title="en:Birkenhead, South Australia">Birkenhead</a>, Adelaide, South Australia.
Flickr user Michael Coghlan : <a rel="nofollow" class="external free" href="https://www.flickr.com/photos/mikecogh">https://www.flickr.com/photos/mikecogh</a>
CC BY-SA 2.0
Flickr : <a rel="nofollow" class="external free" href="https://www.flickr.com/photos/mikecogh/6055910302">https://www.flickr.com/photos/mikecogh/6055910302</a>