The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
National Gallery. Madonna of the Pomegranate. Giov. Bellini. Waterlow
National Gallery. Madonna of the Pomegranate. Bellini. Waterlow. London
National Gallery. The Madonna. Giovanni Sassoferrato. G. D. and D. L. 1907
National Gallery. The Madonna of the Basket. Correggio. Waterlow. Post Card No. 1121
National Gallery. The Madonna in Prayer. Sassoferrato. Card No. 1082. Waterlow
London. The Trustees of the National Gallery. Madonna. Child. St. Anne and St. John. Leonardo da Vinci. The Medici Society
National Gallery. The Madonna of the Meadow. Waterlow. Card No. 1040. Giovanni Bellini
National Gallery. The Madonna and Child. National Gallery Publications