Pocket-sized hunting horn (<a href="https://en.wikipedia.org/wiki/Natural_horn" class="extiw" title="en:Natural horn">natural horn</a>, maybe a pless horn). Self-photographed in the year 2009 – with a dark grey <a href="https://en.wikipedia.org/wiki/Loden_cape" class="extiw" title="en:Loden cape">loden cape</a> as background.
<a href="//commons.wikimedia.org/wiki/User:Frank_Behnsen" title="User:Frank Behnsen">Frank Behnsen</a>
CC BY-SA 3.0
<span class="int-own-work">Self-photographed</span>