Medieval manu propria.
<a href="//commons.wikimedia.org/wiki/User:The_Man_in_Question" title="User:The Man in Question">The Man in Question</a>
Enlarged version of <a href="https://en.wikipedia.org/wiki/en:Image:Manu_propria.png" class="extiw" title="w:en:Image:Manu propria.png">en.wikipedia.org/wiki/Image:Manu_propria.png</a>