HMAS Derwent (DE 49) QF 4.5-inch Mk I – V naval gun, Rockingham Naval Memorial Park, Western Australia. The gun turret was recently repainted.
<a href="//commons.wikimedia.org/wiki/User:Calistemon" title="User:Calistemon">Calistemon</a>
<span class="int-own-work" lang="en">Own work</span>