The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
H. M. Queen with Prince Charles and Princess Anne. Marcus Adams. 699. RP
H. M. The Queen with Prince Charles and Princess Anne. Marcus Adams. RP
Her Royal Highness Princess Anne. Marcus Adams. Lansdowne. RP. 1956
T R H Prince Charles and Princess Anne Marcus Adams Tuck RP 1953
H. R. H. Princess Anne. Marcus Adams. 714. RP
115A. T. R. H. Prince Charles and Princess Anne. Marcus Adams. Tuck. RP