The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Postcard without picture. 1939
Carte postale. Schweiz. Postcard without picture. 1896
Postcard without a picture. 1939
Postcard without picture. O. Pejchar. Praha II. 1945
France. Postcard without picture
Postcard without picture. Brev Kort. Old Postcard
Postcard without picture. American Flag
Postcard without picture