Bad Harzburg, Canossasäule, Zeichnung
Unknown author<span style="display: none;">Unknown author</span>
Illustrirte Zeitung Nr. 1784, 8. September 1877 (<a rel="nofollow" class="external autonumber" href="https://www.dhm.de/lemo/bestand/objekt/ra001494">[1]</a>)