<a href="//commons.wikimedia.org/wiki/Alfred_D%C3%B6blin" title="Alfred Döblin">Alfred Döblin</a>, 1916
Photographer not credited
1916
<a rel="nofollow" class="external text" href="https://digi.ub.uni-heidelberg.de/diglit/walden1963/0076">Nell Walden: <i>Herwarth Walden: ein Lebensbild</i> — Berlin, Mainz, 1963</a>