The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Heinz. H. T. K. Pots
Dusseldorf. Hauptbahnhof. Adam Heinz. Postcard
PS. Have You Tried This. H. T. K. Posts. Heinz Tomato Ketchup
100 Jahre Historischer Verein. Karolingische Kreuzfibel. Maximum Officielle. Heinz Preute. 2001
Heinz. Pitts Publishing. Show Biz Series
Zum Fuschertorl. Steinmann Heinz
Merano. Meran. Castel Tirolo. Heinz
Flugaufnahme. Fotohaus Westmuller Inh. Heinz Kunasz Linz