Signature of French pianist and composer <a href="https://en.wikipedia.org/wiki/Th%C3%A9odore_Ritter" class="extiw" title="w:Théodore Ritter">Théodore Ritter</a> (1840-1886).
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Théodore Ritter</div>
19<sup>th</sup> century <div style="display: none;">date QS:P571,+1850-00-00T00:00:00Z/7</div>
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