The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Koln am Rhein. The Cathedral of Cologne. Hans Ziethen
The Cathedral of Cologne. Hans Ziethen
The Cathedral of Cologne. Ziethen. Horst Ziethen
Koln am Rhein. The Cathedral of Cologne. Horst Ziethen
Koln am Rhein. The Cathedral of Cologne. Southern Side. Hans Ziethen. Horst Ziethen
Koln am Rhein. The Cathedral of Cologne. Southern Side. Hans Ziethen