Ordnance quick fire 18-pounder field gun (1915), as used by the Royal Artillery in WWI. Collection of the Royal Artillery Historical Trust. On loan to a semi-permanent exhibition dedicated to the Royal Artillery and Royal Military Academy in Greenwich Heritage Centre, Woolwich, south east London, UK.
<a href="//commons.wikimedia.org/wiki/User:Kleon3" title="User:Kleon3">Kleon3</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>