Portret van Hongaars pianist en componist Béla Bartók (1881-1945)
Unknown author<span style="display: none;">Unknown author</span>
<a rel="nofollow" class="external text" href="http://proxy.handle.net/10648/6a2382e0-1ad9-102f-a76c-003048944028">Nationaal Archief</a> AKN 013