The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Cologne on the Rhine. Cathedral. South Side. Suhwold
Cologne on the Rhine. Cathedral. South Side. Suhwold. 1957
Cologne on River Rhine. The Cathedral. South Side. Suhwold Verlag. Nr. 5007. Elisabeth Sorge
Koln am Rhein. The Cathedral of Cologne. Southern Side. Hans Ziethen. Horst Ziethen
Koln am Rhein. The Cathedral of Cologne. Southern Side. Hans Ziethen
Cologne on the Rhine. Cathedral. West Side. Suhwold
Cologne on the Rhine. Cathedral West Side. Holzermann. 1921
Reims. The Cathedral. South Side. Cormault et Papeghin
