The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
H. M. The Queen and the Royal Family on the Balcony. Valentine. No C.49.
H. M. The Queen and the Royal Family on the Balcony. Valentine. RP
H. M. The Queen and the Royal Family on the Balcony. Valentine. RP. 1953
H. M. The Queen and the Royal Family on the Balcony. RP. 1974
H. M. The Queen and the Royal Family on the Balcony. Valentine. Coronation Souvenir Post Card. RP
