Porträtfoto von Carl von Häberlin, Schwäbisches Bilderblatt, Jg. 4 (1911), Nr. 18, 28.4.1911, S. 8.
Unknown author<span style="display: none;">Unknown author</span>
before 1911 <div style="display: none;">date QS:P,+1911-00-00T00:00:00Z/7,P1326,+1911-00-00T00:00:00Z/9</div>
Scan from the original work