The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
H. M. The Queen With the Duke of Edinburgh at Windsor Castle. Valentine. RP
Windsor Castle. H. M. Queen Elizabeth II. And Prince Philip. The Duke of Edinburgh. Valentine. RP. Multi View
H.M. The Queen and H.R.H The Duke of Edinburgh. The Garter Ceremony. Windsor Castle. Charles Skilton
Windsor Castle. The Queen Drawing Room. Topical Press Ltd. Pitkin Pictorial Postcards
Windsor Castle. The Queen Audience Chamber. Topical Press Ltd. Pitkin Pictorial Postcards
Windsor Castle. The Queen Guard Chamber. Topical Press. Pitkin Pictorial Postcards
Windsor Castle. The Queen Guard Chamber. Pitkin Pictorials Ltd