<http://schema.org/description>
"The Flag of the North German Confederation (186671) and the German Empire (18711918). Also used by Weimar Republic foreign services (192233). Date: 1913"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mediastorehouse.com/flag-of-the-german-empire/print/7213037.html>