Old Rhine between Mannheim and Speyer. Koller in Brühl (Baden)
<a href="//commons.wikimedia.org/wiki/User:Spacefrank" class="mw-redirect" title="User:Spacefrank">Frank</a>. Original uploader of whole map: <a href="//commons.wikimedia.org/wiki/User:Immanuel_Giel" title="User:Immanuel Giel">User:Immanuel Giel</a>
1775
part of <a href="//commons.wikimedia.org/wiki/File:Mannheim_und_Umgebung_Charta_Palatina_von_C_Mayer_um_1775.jpg" title="File:Mannheim und Umgebung Charta Palatina von C Mayer um 1775.jpg">Image:Mannheim und Umgebung Charta Palatina von C Mayer um 1775.jpg</a>