GUNS PLACED BY THE U.S. NAVY TO PROTECT THE SUBMARINE BASE at Princess Royal Fortress on Mount Adelaide, Albany, Western Australia
<a href="//commons.wikimedia.org/wiki/User:KLOTZ" title="User:KLOTZ">JERRYE &amp; ROY KLOTZ MD</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>