Main Guard and St. Catherine's Church from northwest in Frankfurt am Main, photograph around 1860
Theodor Creifelds
2013-09-01 09:13:02
Creifelds, Theodor (1860). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20150924105606/http://www.stadtgeschichte-ffm.de/download/hauptwache.pdf">Hauptwache und Katharinenkirche von Nordwesten.</a> <span style="font-size: 0.95em; font-weight: bold; color:#555; position: relative;">(in German)</span> (PDF) Seite 6. Institut für Stadtgeschichte. Archived from <a rel="nofollow" class="external text" href="http://www.stadtgeschichte-ffm.de/download/hauptwache.pdf">the original</a> on <span class="mw-formatted-date" title="2015-09-24">2015-09-24</span>. Retrieved on <span class="mw-formatted-date" title="2013-09-01">1 September 2013</span>.