A <a href="https://en.wikipedia.org/wiki/muddler" class="extiw" title="en:muddler">muddler</a>, displayed vertically, with size legend 7.5"
Dave Catania (Cachaca Dave).
<a href="//commons.wikimedia.org/wiki/File:Muddler.jpg" title="File:Muddler.jpg">File:Muddler.jpg</a>, modified by Eyrian (<a href="https://en.wikipedia.org/wiki/User_talk:Eyrian" class="extiw" title="en:User talk:Eyrian">talk</a>).