Boom defence vessels<br>
Oil painting
<bdi><a href="https://en.wikipedia.org/wiki/en:Charles_Cundall" class="extiw" title="w:en:Charles Cundall"><span title="English painter (1890-1971)">Charles Cundall</span></a>
</bdi>
Mid 20th century
<a rel="nofollow" class="external free" href="http://collections.rmg.co.uk/collections/objects/13051">http://collections.rmg.co.uk/collections/objects/13051</a>