The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Koln. Panorama. Leo Kurten. Postcard
Koln. Panorama. Leo. Kurten
Koln a. Rh. Panorama. Leo Kurten. No 29
Koln. Panorama. Verlag. Leo Kurten. Postcard
Koln a. Rhein. Panorama
Panorama mit Rhein. Koln. By Moonlight. 1911
