The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Heidelberg. Hauptbahnhof. Kruger. 938 3. 1963
Essen. Hauptbahnhof. Postcard
Munster i. Westf. Hauptbahnhof. Postcard
Stuttgart. Hauptbahnhof. Postcard
Dusseldorf. Hauptbahnhof. Postcard
Koln a. Rh. Hauptbahnhof. Postcard
Coln a. Rh. Hauptbahnhof. Postcard