12-pounder gun at Fort Dunree, officially known as the <i>Ordnance QF 12-pounder 12 cwt</i> of the British army with a calibre of 76.2 mm and a max range of ca. 7,315 m. See <a rel="nofollow" class="external text" href="http://www.fsgfort.com/uploads/pdfs/Public/British%20Coastal%20Artillery%20P.pdf">Terry Gander: <i>Twentieth Century British Coast Defence Guns</i></a>, pp. 3.
<a href="//commons.wikimedia.org/wiki/User:AFBorchert" title="User:AFBorchert">Andreas F. Borchert</a>
CC BY-SA 4.0
<span class="int-own-work">Self-photographed</span>