Obverse of a <a href="https://en.wikipedia.org/wiki/Charlemagne" class="extiw" title="en:Charlemagne">Charlemagne</a> denier (a silver coin) coined in <a href="https://en.wikipedia.org/wiki/Mainz" class="extiw" title="en:Mainz">Mainz</a> from 812 to 814, today at the <a href="https://en.wikipedia.org/wiki/Cabinet_des_M%C3%A9dailles" class="extiw" title="en:Cabinet des Médailles">Cabinet des Médailles</a> in Paris.
<a href="//commons.wikimedia.org/wiki/User:PHGCOM" class="mw-redirect" title="User:PHGCOM">PHGCOM</a>
2009
Own work by uploader, photographed at Cabinet des Médailles, Paris.