Sign of Johann Sebastian Bach
<bdi><a href="https://en.wikipedia.org/wiki/en:Johann_Sebastian_Bach" class="extiw" title="w:en:Johann Sebastian Bach"><span title="German composer (1685–1750)">Johann Sebastian Bach</span></a>
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<a rel="nofollow" class="external text" href="http://www.bach-leipzig.de/">Bach-Archiv Leipzig</a>; svg from <a href="//commons.wikimedia.org/wiki/User:Lumu" title="User:Lumu">Lumu</a>