<p>Sectioned cylinder <a href="https://en.wikipedia.org/wiki/junk_head" class="extiw" title="en:junk head">junk head</a> of a <a href="https://en.wikipedia.org/wiki/Bristol_Centaurus" class="extiw" title="en:Bristol Centaurus">Bristol Centaurus</a> radial engine
</p>
At the 2015 Bristol Model Engineer show, Thornbury.
<a href="//commons.wikimedia.org/wiki/User:Andy_Dingley" title="User:Andy Dingley">Andy Dingley</a>
<span class="int-own-work" lang="en">Own work</span>