Beethoven, one of the 4 portraits of musicians (Bach, Gluck, Beethoven, Wagner. Koehl E98 to E101) edited in a portfolio by Insel Verlag in 1900
<bdi><a href="https://en.wikipedia.org/wiki/en:Alfredo_M%C3%BCller" class="extiw" title="w:en:Alfredo Müller"><span title="Italian painter (1869-1939)">Alfredo Müller</span></a>
</bdi>
1898–1900
Unknown source<span style="display: none;">Unknown source</span>