The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Their Royal Highnesses Prince Charles and Princess Anne. Tuck. RP
Their Royal Highnesses. Prince Charles and Princess Anne. Photochrom. Marcus Adams. 1953
Their Royal Highnesses. Prince Charles and Princess Anne. Photochrom. Marcus Adams
Their Royal Highnesses. Prince Charles and Princes Anne. Photochrom. Marcus Adams
His Royal Highness Prince Charles. Marcus Adams. Photochrom
Windsor. His Royal Highness Prince Charles. Rachel Arthur Gallery. No. 2. Postcard
99B. His Royal Highness Prince Charles. Marcus Adams. Tuck. RP