Pianist Dirk Schäfer portrayed by Jan Toorop (1905)
<bdi><a href="https://en.wikipedia.org/wiki/en:Jan_Toorop" class="extiw" title="w:en:Jan Toorop"><span title="Dutch-Indonesian painter (1858–1928)">Jan Toorop</span></a>
</bdi>
1905<div style="display: none;">date QS:P571,+1905-00-00T00:00:00Z/9</div>
from: Drawing from 1905 by dutch painter Jan Toorop, republished in a.o. Dirk Schäfer - <i>Het Klavier</i> (book, 1942)