The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Dusseldorf. Hauptbahnhof. Hubert Knappe. Nr. 14. RP
Furth. i. B. Hauptbahnhof. Hubert Knappe
Duisburg. Stadtautobahn am Hauptbahnhof. Hubert Knappe
Duisburg. Am Hauptbahnhof. Hubert Knappe
Hauptbahnhof Osnabruck. Rolf Werner. Nr. 20. Multi View
Gruss aus Dortmund. Hauptbahnhof. Fernsehturm. Hubert Knappe. Multi View
Gruss aus Frankfurt. Hauptbahnhof. Mainpartie. Romer. Hubert Knappe. Multi View. 1962
Dusseldorf. Aluminiumbrucke. Hubert Knappe
