The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Trier. Porta Nigra. Stengel. 61264. 1931
Stengel. 52543 Trier. Porta Nigra. 1930. RP
Trier. Porta Nigra. Stadtpanorama. Theodor Goebes. Kruger. Multi View. 1970
Trier. Porta Nigra. Stadtseite. Niko Haas. RP
Trier. Porta Nigra. Stadtseite. No. 4764. Mosel. Karl Rud. Bremer
Porta Nigra. Trier. Schoning
Trier. Porta Nigra. Schaar and Dathe. 1904
Trier Masel. Porta Nigra. N. Trier. RP
