Foto: "<a href="https://www.ccnull.de/foto/red-royal-mailbox-on-a-street-of-london/1046291" target="_blank">Red Royal Mailbox on a street of London</a>" von <a href="https://www.ccnull.de/fotograf/marco-verch" target="_blank">Marco Verch</a> via <a href="https://www.ccnull.de" target="_blank">ccnull.de</a> - <a href="https://www.flickr.com/photos/149561324@N03/40684530125/" target="_blank">Bildquelle</a>, <a href="https://creativecommons.org/licenses/by/2.0/de/" target="_blank">CC-BY 2.0</a>