<p>Dummy shell for a 76mm naval gun.
</p>
Photo taken on an open day for the HMAS Adelaide FFG01 at Dock 2, Port Adelaide, South Australia
<a href="//commons.wikimedia.org/wiki/User:Peripitus" title="User:Peripitus">Peripitus</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>