The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
The Round Tower. Windsor Castle. Valentines. RP. 1958
The Round Tower. Windsor Castle. Valentine. RP
Windsor Castle. Round Tower. Valentine and Sons. Ltd. RP
Windsor Castle. The Round Tower. Valentine. Art Colour. E. W. H
Windsor Castle. The Round Tower. Valentine. Valesque. 1240. V. Style. Multi View