The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Dusseldorf. Aluminiumbrucke. Nr. 32. RP
Grusse aus Dusseldorf. Hubert Knappe. Multi View
Gruss aus Dusseldorf. Hubert Knappe. Multi View
Deutschland. Munster in Westfalen. Dom. Hubert Knappe. Dusseldorf. 1967. Postcard
Monchengladbach. Bunter Garten. Hubert Knappe. Dusseldorf
Monchengladbach. Geroweiher und Munster. Hubert Knappe. Dusseldorf
Deutschland. Duisburg. Rathaus. Hubert Knappe. Dusseldorf. DUC 6. Postcard
Dusseldorf. Aluminium Brucke und Europa Halle. August Gunkel
