The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Windsor Castle. Round Tower. Band Arriving at Windsor. Photographic Greetings Card Co. Ltd. Natural Colour Series. Multi View. 1972
The Round Tower. Windsor Castle. Art Colour. E. W. H. Valentine
A1397. The Round Tower. Windsor Castle. Art Colour. E. W. H. Valentines
Windsor Castle. Round Tower and Norman Gate. Ernest Masrhall
Windsor Castle. Round Tower and Moat Garden. F. Frith. No. 66992
Windsor Castle. Round Tower and Edward III Tower. Valentine. Phototype
Windsor Castle. Round Tower and Edward III. Tower. Valentine. RP
Norman Gateway and Round Tower. Windsor Castle. L. 1054. Collo Colour. Valentines