The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Moravian Karst. Fairyland Cathedral in Punkva Cave. Orbis. VI Stehlik
Moravian Karst. Balcarka Cave. Orbis
Moravian Karst. View from Bottom of Macocha Gorge. Ing. J. Rimpel. Nakladatelstvi Orbis. Praha
Slovak Karst. The Dominica Cave. Pressfoto. Tisk Severografia Decin
Cheddar. Aladdin Cave. Lower View. Gough Cave. J. Arthur Dixon. D. R. G. Cheddar Caves
Aladdins Cave. Goughs Cave. Cheddar. Caves and Gorge. Arabian Nights
Jenolan Caves. N. S. W. Australia. Minaret River Cave and Jenolan Caves House. Garrick Cards. Multi View. 1973
Gough Caves. Alladins wonderful cave. reflected. A. G. H. Gough. Cheddar. The Only Caves Lit By Electric Light