The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Ireland. Co. Wicklow. Glendalough. St. Levin Church and Round Tower. Cardall. 1969
Windsor. The Norman Gate and Round Tower. Charles Skilton and Fry. 1982
Kobenhavn. The Round Tower. Colorama
Round Tower. Clondalkin. 1906
The Round Tower. Cirencester Park. W. D. M. 0191
Windsor. Corps of Drums. Windsor Castle. Round Tower. St. George Chapel. Charles Skilton and Fry. Multi View
Windsor Castle. Round Tower. Band Arriving at Windsor. Photographic Greetings Card Co. Ltd. Natural Colour Series. Multi View. 1972
Windsor Castle. Round Tower and Norman Gate. Ernest Masrhall