1. Europa Creator: Weiland, Karl Ferdinand Publisher: Weimar : im Verlage des geograph. Instituts, Type: model:map and IMAGE Language: German Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
2. General Karte von dem Preussischen Staate Creator: Weiland, Karl Ferdinand Publisher: Weimar : im Verlage des geograph. Instituts, Type: model:map and IMAGE Language: German Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public