The class symbol for a <a href="https://en.wikipedia.org/wiki/C-Lark" class="extiw" title="w:C-Lark">C-Lark</a> 14 which is a small racing dinghy which was first produced in the mid 1960's.
<a href="//commons.wikimedia.org/wiki/User:Orionist" title="User:Orionist">Orionist</a>
<span class="int-own-work" lang="en">Own work</span>