The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Pilatuskulm. Dr. Trenkler. Postcard. 1906
Reiboldsgrun i. V. Dr. Trenkler. Postcard. 1903
Gravenhage. Ridderzaal. Dr. Trenkler. Postcard
Hamburg. Seewarte. Dr. Trenkler. Postcard
Domburg. Weenenk. Dr. Trenkler. Postcard
Coln. a. Rh. Dom. Inneres. Dr. Trenkler. Postcard
Volendam. A man with a small child in his hands. Next to the girl. Dr. Trenkler. Postcard
Goscheneralp. Uri. Kapelle Gwuest gegen den Staudamm. Dammagletscher und Dammastock. Photohaus Geiger. Waldhaus. C5558. PM. Luzern. 1981. Postcard
