The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Windsor Castle. Round Tower from Quadrangle. Windsor. 19308. Stengel
Windsor. Round Tower. Windsor Castle. Floodlit. Charles Skilton and Fry
Windsor Castle. Round Tower. Band Arriving at Windsor. Photographic Greetings Card Co. Ltd. Natural Colour Series. Multi View. 1972
Round Tower. Windsor Castle. G. 4827. Valentines. RP
Round Tower. Windsor Castle. 54. Excel Series. RP
Round Tower. Windsor Castle. 1403. Natural Colour Series. Photographic Greeting Card
Windsor. Corps of Drums. Windsor Castle. Round Tower. St. George Chapel. Charles Skilton and Fry. Multi View
The Round Tower. Windsor Castle. RP