The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Koln a. Rh. Hohenzollernbrucke. Postcard
Koln a. Rh. Hohenzollernbrucke. Postcard. 1919
Aer Lingus. L1011 50. N191AT. Aviation Postcard. Koln. Germany. Postcard
Koln. No. 5045. Koln mit Hohenzollernbrucke. Karl Rud. Bremer
