The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
National Gallery. The Virgin and Child. Card No. 1130. Masaccio
National Gallery. The Virgin and Child with SS. Anne and John the Baptist. Henry Stone. Card No. 1325. Leonardo Da Vinci
National Gallery. The Virgin and Child with SS. Anne and John the Baptist. Card No. 1325. Leonardo Da Vinci
National Gallery. The Virgin and Child With Saints. David. Gerard. Card No. 1366
National Gallery. The Virgin and Child. Waterlow. Card No. 1026. Giovanni Bellini
National Gallery. The Virgin and Child. Bellini. Giovanni. Card No. 1026. Waterlow
National Gallery. The Virgin and Child. Bellini. Giovanni. Card No. 1041. Henry Stone
The National Gallery. The Virgin and Child With SS. Anne and John the Baptist. Leonardo da Vinci