The autograph of Gustav III of Sweden
<a href="//commons.wikimedia.org/wiki/User:Wesalius" title="User:Wesalius">Wesalius</a>
2018-09-15
<span class="int-own-work" lang="en">Own work</span>, derived from <a href="//commons.wikimedia.org/wiki/File:Autograf,_Gustaf_III,_Nordisk_familjebok.png" title="File:Autograf, Gustaf III, Nordisk familjebok.png">File:Autograf, Gustaf III, Nordisk familjebok.png</a>