Preserved now house number 20 on Benratherstrasse in the city of Hilden (North Rhine-Westphalia, Germany).
Unknown author<span style="display: none;">Unknown author</span>
Hilden heute-gesrern. Beleke KG, 1977, <a href="//commons.wikimedia.org/wiki/Special:BookSources/3-8215-0392-0" title="Special:BookSources/3-8215-0392-0">ISBN 3-8215-0392-0</a>