The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Das Schone Koln. Cologne On the Rhine. Suhwold. Multi View. 1959
The Cathedral western side. Koln a. Rh. Cologne. WWR
Gruss aus Koln am Rhein. Cologne on the Rhine. Suhwold Verlag. Multi View
Koln a. Rh. Cologne. The University. 1923
Koln am Rhein. Cologne on the Rhine. Ziethen. Multi View
Koln am Rhein. Cologne on the Rhine. Jos. Kessel. Nr. 2186
Cologne on the Rhine. Rhine Waterfront. Suhwold
Cologne on the Rhine. Rhine Wharf. Ed. Holzermann