<a href="//commons.wikimedia.org/wiki/Adolf_Cluss" title="Adolf Cluss">Adolf Cluss</a> in front of the National Museum (Arts and Industries Building), 1880
Unknown author<span style="display: none;">Unknown author</span><br>Converted into JPG format by <a href="//commons.wikimedia.org/wiki/User:Rosenzweig" title="User:Rosenzweig">Rosenzweig</a>
1880
<a rel="nofollow" class="external autonumber" href="http://www.adolf-cluss.de/press/adolf-cluss/adolf-cluss-in-front-of-the-national-museum.tif">[1]</a>. Photo: Smithsonian Institution